Just got back from my local Verizon store, had to exchange my 1st one for a new on. besides the glass issue( the left side & top had a gap as wide as a business card that collected dust & dirt daily) the lock screen button became loose & required me to push the button below flush for it to work. I don't know why they changed the buttons from the 920 & 822 but they feel really cheap. Also the ceramic bezel for the camera was not evenly flush with the back of the phone. The top where the lens is was perfectly flush & the bottom was protruding or sticking out about the same thickness of 2 business cards. Also had the weird discoloration of the 3 buttons.
The demo unit & the 822 camera were all flush, no gaps at the glass & buttons were nice and solid(thought the 928 demo unit still felt cheap compared to the 822's ceramic buttons. I just hope the camera is as good as the 1st unit I had.