My GPD G7 came with a few problems:
-The right stick is lower in the case than the left causing it to be gritty.
-When I press to the right of my screen it looks like something is poking the screen from behind, causing a blemish on screen.
-The device don't read the charge correctly, it said 15% for hours!
-The right trigger is much harder to press than the left trigger.
-My Dpad can almost spin around if you try to turn it.
-Around the outer edge of the screen the corners are pressed down, Perhaps done intentionally to keep it there.
Other than that...great device. Perhaps Im just unlucky, If the stick and screen could get fixed I would be very happy with the device.