So far I love this new update. I love all the new photo features and lock screen featured. I haven't been this excited since the 3GS came out and I could do home screen backgrounds. I'm also digging the airdrop feature and the new interface. iTunes Radio is pretty awesome. It seem much more user friendly. It is definitely taking some getting used to, but so far I'm a fan.
What do you like about it? Don't like about it?
*if you didn't know this update is also available on iPads.