While visually, there are some arguable choices being made with iOS 7, the first party apps are better off for the changes. The key takeaway here is that Apple isn’t slowing down. iOS is moving from a crawl to a walk, and yes the first few steps might be wobbly. But walking will take the platform to a more mature place where its impact can continue to grow.
A nice and elaborate summary of whats new and how it feels after a week with the iOS 7 BETA.