I wasn't going to download iOS 7 since I plan on buying the 5S tomorrow, but I was prompted so whatever. Well, everyone and their mother was trying to get that update so it took forever. I kept trying to install until I passed out then I finally was able to verify the update around 10pm last night.
It's pretty much the same thing with more colors. Since I'm still using a 4S, performance is no different. Control Center is pretty awesome. I think Android has had that for ages, but hey, it's new to me. It's silly that You can change what's on Control Center. I really don't see myself using the fingerprint scanner when I get the 5S. I can finally move Newsstand to my "Useless Apps" folder since I'm not allowed to delete them outright. I did that immediately.
Ultimately, if you're use to iOS, you should be pretty comfortable here which I think was the entire point. I like the flatter icons though really, that doesn't matter as long as this thing does what I want it to do. I'm on NWR at work.