Great Stuff, some stuff missing... but overall great!
I was truly afraid of a big letdown but they delivered!
Some people hate the new design, some love it, but that's expected!
iOS 7
LOVE
I love the UI and animations, some fantastic new features and some really cool new tweaks to make some things much more enjoyable to use (I'm looking at you Photos app!), the new multitasking...
General transparency looks awesome!
LIKE
Quick controls look pretty cool too, so is the new folder design, iRadio looks pretty cool too (although surprisingly we didn't see any ads... so wonder what that will be like

)
DISLIKE
Some of the app icons are fugly, looking at you safari
DISAPPOINTMENTS
Siri seems no smarter to before... not much anyway. And biggest deception: probably isn't offline usable, and it probably isn't as fast as google's voice recognition
Mavericks
LOVE
Multiple homescreen support. Simply awesome! Can't wait! Yes, it's a "simple" or "much needed" fix, but it's here and it looks really well done
They didn't show much but I think it's a pretty good release. And the best news: they didn't bring more iOS to Mac... meaning it's not going to merge into one yet.
Mac Pro
Apart from it looking like a trash bin, it looks pretty good (although I won't be a buyer). However, they didn't talk about pricing, so that might be a point of contention
MacBook Air
Can't complain, seems good on paper