I have. I'm typing this from iOS 7. My opinion has changed little from seeing it on the Keynote to actually using it. Some graphic details don't seem as bad in person and others are much worse.
On the plus side, it's very speedy. Plus, it makes existing 3rd party apps look glorious, with their attractive, last-generation looks.
On the plus side, it's very speedy. Plus, it makes existing 3rd party apps look glorious, with their attractive, last-generation looks.