My list of problems:
* Coil whine
* Noisy fans
* Heat issues
* USB-C port has a bad pin (only works in one orientation with pressure)
* Charging port inconsistently charges
* Bad cell in the battery, so it suddenly shuts off without warning when on battery
The charging issues started just around the 12 month mark, so I quickly sent to a repair center under warranty. They returned it with a note that said "mainboard replaced", but nothing had actually been replaced. Same bad pin on the USB-C port (everything I plug into it only works "upside down", and that port is part of the mainboard), same dust in the ports as when I mailed it, etc. By the time they shipped it back, the warranty had expired.
If you're going to buy one of these, I recommend buying an extended warranty. I do also recommend the touchscreen. I've heard the i5 versions have less problems, I would probably take the performance hit next time if it meant a more reliable and longer-lasting machine.