I loaded it up late last night; unlocked for the first time which was amazingly easy. Took maybe 15mins to flash, but like the unlocking was pretty easy. Too early to tell about the battery usage yet as I was beating on it pretty hard this am and downloading my Music again to sync it, so it was chewing through it reasonably fast which would be expected (display being the biggest hit). The real test will be at work on Monday as we are in a shielded building where I barely get 3g or even 1x... so curious to see if it dies within a few hours still.
Some people have reported an increase in db for their LTE signal. Mine actually went down a slight bit, but of course the bars have gone up in the display due to their "fix".
Haven't made any calls yet so not sure about audio issues.
Interface is snappy, and rotation seems ok so far as well. I also noticed a "Dock" option in settings I hadn't noticed before, but may have missed it.
-Mike