I had a unit that didn't have any color shift, I needed to replace it because my mute button got really loose. Like it would rattle every time I moved the phone slightly. I got an express replacement through AppleCare+ and that one has a really bad pink angle shift and there is also a pink glow on the whole right side edge. Guess I'm chatting in with them for another replacement. Has anyone done the AppleCare+ express replacement option more than once? I'm assuming I'll have to send them pictures of my screen?(they didn't ask for anything when I told them about my button being loose, just processed a replacement no other questions asked) I read a lot on white backgrounds and it's VERY distracting.