Data36 Reviews 

14
•
TrustScore 4.5 out of 5

4.4

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Company details

  1. Class
  2. also in
  3. Blogger
  4. Computer Training School

Written by the company

I'm Tomi Mester, a practicing data analyst since ~2012. On my website, Data36, I create hands-on and true-to-life tutorials and online courses to help people learn data science. I also share a few of my data science side projects on my Youtube channel.


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4.4

Excellent

TrustScore 4.5 out of 5

14 reviews

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4.4

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Rated 5 out of 5 stars

Data36: a serious and reliable data science site

Tomi Mester takes the time to explain really well the material he teaches.
He is proactive and responsive and kind.
Most importantly, he actually says the truth about Data Science being a difficult field for which one must be ready to invest time and interest. Data science does not get learned over a few months through an odd online crash course.

June 21, 2023
Unprompted review
Rated 1 out of 5 stars

This course is incredibly complicated…

This course is incredibly complicated to set up and I ran into tons of errors, when I asked for a refund with his 30 day money back guarantee he ignored me and did not offer a refund. I find this an awful thing to do and immoral.

Dan R

August 24, 2021
Unprompted review
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Reply from Data36

hey Dan,

Firstly, I'm sorry for your bad experience. I understand your problems with the course but as the motto of data36's implies ("learn data science the hard way"), my courses are not for everyone. I guess I'm pretty straightforward about this, I mention this many times: on the course info pages, on the main page of website, in emails I send and generally everywhere. Besides, you can always start with the free tutorial articles (which I have 100+ of on my website) to figure out whether my teaching style is for you or not. If you don't like my teaching style, you are always welcome to go with a simpler course on my competitors website, although I still think that the best way to learn data science is to simulate a real life infrastructure, and to solve real life problems. Part of this is to encounter error messages. (Which you can always reach out about to me if you need help.)

Just for the record to everyone who's reading this:
Dan's complain is in regards to my 7-day SQL course and I did refund them without question for the first request. That's a key policy of Data36: 30-day no-question 100% refund. And by no-question I mean: no questions at all. If you finished the course but didn't like it and ask for a refund, you'll get the refund. If you bought the course, but haven't got time to get started with it and ask for a refund, you'll get the refund. Generally, if you ask for a refund, you'll get refunded without questions. Again: I did the refund for Dan, as well, for the first request and emailed them about it in ~8 hours after their request.

So Dan saying I "ignored" their refund-request is either by coincidence (e.g. my email went into their spam folder) or by their desire to willingly hurt my brand... Either way: I find it unfair.

And as a final word: registering to Trustpilot was my worst business move ever. Trustpilot is close-to-scam by not mentoning that you can't remove your business from their website once you are registered. Right after you realize this you'll realize 2 more things: 1) Their calculation is not a simple statistical average, they skew your numbers and show lower numbers to incentivize you to bring more reviews to their platform. 2) If you know some statistics, you'll quickly learn that the reviews you'll find here are really going through some selection/survivorship bias -- either the positive or the negative way.

Best for everyone who read this far.

And Dan: again, I'm sorry for your bad experience, hope you'll have a better one at an other data science school.

Everyone else: I hope Dan's review didn't discourage you to come to data36.com and learn data science the hard way.

Cheers,
Tomi

Rated 5 out of 5 stars

The best data course

I have just completed the Junior Data Scientist Academy 3 months online course. I am really happy I chose this course over the many other data science courses.
The instructor, Tomi Mester introduced me the word of data science. Command line skills, Python coding, SQL, statistics, machine learning and business thinking, the full set of knowledge what is needed to start a new carrier or a hobby project in this interesting field.
Tomi started the video tutorials by explaining very basic commands and queries which anyone without IT skills could easily follow. Then he guided into more and more difficult tasks and topics, and a little bit later I just realised that I am writing a quite complex code. His enthusiasm is super motivating. When he posted a new task, I couldn't wait until the end of the working day to get to it. Tomi’s presentation style is exceptional, he explains even the most difficult topics in a very clear, logical and easy-to-follow way. Tomi and Tamas were always available and supported me during the whole course, they gave me meaningful and informative response within a short time.
The structure of the course is well established, the perfect rate of theory and practice. The tasks were carefully designed to practice the content of the video tutorials and made me think a little bit further on my own.
I have already registered for the Data36 new Data Source course, to further develop my knowledge on data scraping.

May 13, 2021
Unprompted review
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Reply from Data36

Thanks a lot, Anna!

Rated 5 out of 5 stars

Best out there

The quality of content that Tomi is putting out is just great. It helped me a lot in clearing technical interviews of some really amazing firms

May 7, 2021
Unprompted review
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Reply from Data36

Thanks a lot, Lakshay!

Rated 5 out of 5 stars

Great data science course

The data36.com junior data scientist course is a very practical, very intensive 6 weeks long learning experience. I have learned a lot, and had the opportunity to watch deep into the rabbit hole. I recommend this course for everyone who wants to improve itself in data analytics, data-related coding, automation, and also a little bit of machine learning. After the 6 weeks, I have already started to use what I have learned in my very first data science pet project.

May 4, 2021
Unprompted review
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Reply from Data36

Thanks a bunch for the review and the kind words! : )

Rated 5 out of 5 stars

Junior Data Scientist Academy

I attended the Junior Data Scientist Academy. I was fully satisfied with the course, materials are easy to understand with full of useful examples, and it's all very practice-oriented.
Also great support system, you are definately being taken good care of during the course which is encouraging!
Would highly recommend for those who wish for a more interactive learning experience.

March 4, 2021
Unprompted review
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Reply from Data36

Thank you Anilla!! : )

Rated 5 out of 5 stars

Best data courses ever!

I have completed all three courses available on the Data36 website - the 7 day SQL course, the 6-week junior data scientist (JDS) course and the A/B testing course. All three are amazing and teach you so much more than any other coding course I have ever taken (I’ve taken a few!).

Why are they so good? Because you do all the work yourself and that’s the best way to learn. Everything happens on your laptop - there is no external platform where half the code is pre-written for you. And the code you are writing is similar to the type of code you would write in a real business environment. If you get stuck, you can email the course creator, Tomi Mester, for help and he is always so helpful. All the courses are video-based and very informative and there are also many useful blog articles to read - I frequently go back to the website when I need a reminder on how to load data to SQL!

The JDS course in particular is excellent - I learnt so much by completing this course and also managed to create a few projects for my GitHub portfolio because of it. I was then able to add these projects to my CV and was offered a job in a data analyst role just last week (I took the course in July 2020 so it took less than a year to change my career direction)!

I would recommend all the courses on Data36 to anyone who wants to pursue a career as a data analyst or data scientist - Tomi Mester is a great teacher and everything is broken down in a way that makes it so easy to learn!

March 1, 2021
Unprompted review
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Reply from Data36

Thanks a lot for this very detailed review -- and for all the nice words, Amy!
This really means a lot to me...

PS. Oh and of course, congrats again for the new data role!! ;-)

Rated 5 out of 5 stars

Highly recommend!

The JDS class bring concepts to life and in a format where you can grapple with technical concepts. The approach to data analysis is practical and will serve as useful tools in your career. It was challenging, but guided enough for me to follow and learn something in every session in order to level up my skills working with large sets of data.

February 23, 2021
Unprompted review
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Reply from Data36

Thanks a lot Christina for the nice words!!

Rated 5 out of 5 stars

This course provided me with a lot of…

This course provided me with a lot of insights about the necessary coding skills as well as the business thinking which every Data Scientist should have!

February 21, 2021
Unprompted review
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Reply from Data36

Thanks Tomi for leaving your review here!! : )

Rated 5 out of 5 stars

The Junior Data Scientist's First Month Course

I had The Junior Data Scientist's First Month course, given by Tomi Mester.
All of the lectures are practical. Great, and helpful resources in Sql, Shell Scripting, and Python. Also google spreadsheets.
What I liked the most of his course are the course is project based. It takes you through from zero to get a project done, and work with big-data in bash.
All parts of the course were helpful, but I liked Sql, and bash parts so much.
Also, I want to emphasize that whenever you have a problem, Tomi is there to help. He puts his time for the course, and people who take the course.
I totally suggest this course to people who are interested in data scientist role, and who want to learn sql, and bash.

February 20, 2021
Unprompted review
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Reply from Data36

Semih, thanks a lot for the detailed feedback -- it was a pleasure to work with you in the course!

Rated 5 out of 5 stars

Data36 course (Junior Data Scientist) helpful and complete

I enrolled in Data36's Junior Data Scientist course in 2019. That was very helpful for my budding Data Scientist career; in it, the website owner, Tomi, takes us through each step in a complete data analysis task, both the boring ones (data wrangling) and the exciting ones (machine learning). In addition, there are several highly useful articles about aspects of data science on the website. Overall, I highly recommend it!

February 19, 2021
Unprompted review
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Reply from Data36

Thanks a lot Felipe! It was great working with you in the course!
You sent in one of the best final test task solutions ever in the JDS course history. : )

Rated 5 out of 5 stars

Good course if you are trying to start a data scientist role

I have been on and off with a number of online data science courses, I came to the JDS course because I wanted to understand how much I know and how much more I need to know before I start looking for internships or change of position in my company. The 6 weeks of the JDS was full of fun, doing things that I didn't know were important before, I learned some things that I never knew I needed but also I had a good chance to practice things that I already knew. I recommend this course to anyone who is serious about data science and most importantly those who are trying to start Junior data scientist roles

February 19, 2021
Unprompted review
Data36 logo

Reply from Data36

Thanks a lot for the review/feedback! : )

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