The board has been working for what I wanted to use it for, but it would be nice if the documentation for the MicroMod ecosystem was improved. Many of the processor boards listed are no longer available, and it would be really nice to have some kind of comparison for the processors that are still offered. I purchased the ESP32 to find out later it doesn't support some of the board functionality I wanted. I also found when playing with the processor sleep functions that it seemed possible to corrupt the communication between the SARA module and the processor that required power cycling the board to recover. In summary, a decent board, but needs better documentation on what processor works best with it. For an 'asset tracker' I would expect a lot of applications would be battery based (you don't need to track something that's plugged in). From what I've found it seems like the ESP32 doesn't have the ability to turn off the 3.3V regulator which means the battery life is very limited. I'm hoping the next processor I picked works better, but now I'll need to rework parts of my code.