Top-left corner issues
The new UI is just fine for me. I like it. The only problem I have is that now the buttons in the top-left corner are much harder to press. If they could increase the area sensitive to touch to be larger, it would help a lot. The old version didnt have this problem. The user story is that you want to go back or close a photo. The area of screen that detects that interaction has shrunken to the point of making it VERY easy to miss the "button." Expand it beyond just the visual part of the button and you should be good.
Allowicious about
X, v7.0