Basically the device is good but some issues are coming one by one and users have now found out, but no cellular country complaints.
This Google Nexus 6P appears to have issues with the phone into landscape position. And when it does this there is no option of getting it back into portrait, other users are turning their device off and back it on. Furthermore, users mentioned that they have had concerns with the locking up of the device when they are making a call.
Other have complained regarding problems with the touch screen sensor.