It's too early to really make a decision. I really don't like the design though. I'm really just ugh about this though, because now I regret going Android after my iPhone 4 broke, and then coming back to this mess. It really makes me want to just get an iPhone 5 NOW just so I can have iOS 6 as a backup since you can save the blobs.
I really wish that this was a nightmare that I can wake up from.
I mean, change is good, but this is like Windows 7 to Windows 8 in a way, and not like the slow maturing of Mac OS 1 to OS X 10.9. 10.9 looks great, I LOVE the iBooks integration, and Keychain syncing is going to be amazing, and the new Notification Center is just wow.
However, this, this is just... When you're attached to the UI as I was... I feel like I'm starting over again. Everything that a lot of people LOVE about the iOS design was thrown out like yesterday's garbage in just five minutes. I know a lot of people don't like skeuomorphism, but it's in the heart of iPad apps, and then some iPhone apps. I would have rather they do the calendar like the new 10.9 one, than what they have for iOS 7. They could have done some basic icon changes, and still have all the other cool features still too.
I don't want to feel like I'm reading someone's niche Tumblr blog when I'm using my phone. And I feel like it's become that - Some teenage girl's fantasy of how her phone ought to look like. I'm not 16 anymore, if I wanted that look, I'd jailbreak.