My only complaint for the new version is the notifications. If I have several unread messages, they all disappear from the notification center after opening one of them. Then it says there are no older messages. I still have several unread, but I have to go the mail or messages app to mark them read. I hate that. I can't figure out why they would change that. I have searched in vain looking for an article explaining why that change.
Oh, and sometimes when using larger text, I can't click on the things at the top of the screen until I restart the app.