Front page looks too busy at 1280 px wide. I can't quantify why - maybe it looks too appy rather than like a page. I used to rant a lot about Flickr showing me 500 px wide photos with oceans of whitespace on my large screens - now it looks like they've gone overboard in the other direction...
Photos in different styles don't look great mashed up right next to each other on my photostream. Old design had an option to show them big as one column, or smaller with more whitespace around them.
The default photo height on my photostream is also lower than on the old big one column setting, which makes particularly my vertical photos look worse when you're scrolling by.
I greatly miss the whitespace. When I visit my photostream now, I am presented with an entire screen full of things to process. It used to be about enjoying a single photo, but now the experience just feels like "look how many photos I have".
Sure, it's hard to please everyone, but it's hard for me to personally transition from the old layout.
That said, I'll keep my paid account around for awhile if things keep evolving for the better.
But not by default, and not the previous "big photos in one column" layout for first page of photostream. (There's even a leftover link to change the layout at the bottom one's own details=1 page that 404s...)
Photos in different styles don't look great mashed up right next to each other on my photostream. Old design had an option to show them big as one column, or smaller with more whitespace around them.
The default photo height on my photostream is also lower than on the old big one column setting, which makes particularly my vertical photos look worse when you're scrolling by.