I purchased the Waterdrop 7-Stage Countertop Reverse Osmosis System with the hot and cold water option about a year ago, and I couldn’t be happier with it. The system has worked great since day one. We use it constantly—not just for drinking water but also for cooking—so it gets a lot of daily use. The reverse osmosis cartridge lasted about 10 months, and the CF cartridges lasted around 4½ months (a little shorter than the listed six months, but that’s likely because of how often we use it). The temperature performance is excellent. The cold water reaches about 43°F, and the hot water goes up to 203°F, which is perfect for tea, coffee, and cooking. Overall, it’s been a fantastic purchase and has easily lived up to my expectations. I would definitely recommend it to anyone looking for a reliable countertop reverse osmosis system.