Have been hearing of a lot of screen uniformity issues with these phones around the web. Can anyone confirm if they have a slightly yellow tint, or uneven backlighting? Also I remember last year there was a widespread issue exclusive to the 6 (not the +) where the left edge of the screen above the volume buttons would move when you pushed it and even made a clicking sound. I hope that's now been resolved. Can anyone confirm? Regardless, I'll be trying to avoid the first batch this time around.