I actually like the Nokia 8 a lot, but these three issues are a real pain.
WiFi just stops working for no reason. It says it's connected... Other devices on the same network are fine, Nokia 8 isn't (we have two.... Both do the same).
The phone randomly reboots for no reason... Tell taken signs are reposting that an sd card has been inserted and needing to enter an unlock code (rather than finger print)
Camera app is bad.. Sometimes it can't open the camera, it's often laggy as hell and the screen freezes... Other camera apps seem better behaved.
Please look into these issues as they are ruining what is otherwise a great phone.