There was nothing wrong with the old Battery percentage just shown as text (ie. 96%) it didn't need to be put in a bubble with a pointless bar that cannot be removed, and the whole thing much less legible than it was before - please revert this.
Also, the swipedown to reveal notifications.
I keep getting 'settings' instead. OK, I have to swipe down on the left for Notifications and right for settings, but this is hard to get used to, and I can't believe that anyone asked for it.
Silent Mode - what the heck? Before it was dead easy and mode easilly visible, now its a mulltiple key stroke faff. If it ain't broke.
You're messing it up with UI 7.