Alfa I'm mixed, I liked the old logo, a flat version of that would of been cool. Guess we'll see.

Bravo I dunno about the logo, but the gray scale app is pretty nice

Charlie I think it's an improved. I need to get used to the thick stroke though. Read an article about it... Mentioned the simplicity, representing the filters with those gradient colors and keeping the shape of a polaroid camera for the 'nostalgic' look. Sounded good to me.

Delta It's good but they have based it off if the shape and bright colours of iOS, which is fine — but will be out of date if Apple decides to change it again. They also still use the script logo inside their product which doesn't sit well with the newer logo, this will likely be dropped within a year or so.