Now that it has been out for a day, yay or nay? I definitely think it looks better, but performance still sucks.
It looks great and the expanded view with the store integration is slick. I'm liking the cleaner interface for device management and the iCloud movie time placement sync works every time. Scrolling has definitely felt a bit smoother. Might just be because my content was loaded into a new app installation, but still, seems a bit better.