I figured since I slammed the GB update on my Droid Incredible and the ICS update on my GS2 on Sprint that I should report that this was the smoothest update for me. I know it is only an "incremental" update but this is the first time that I haven't had major problems. I didn't do a factory reset first, I just closed all programs and rebooted the phone first. My battery life is the same and all my bluetooth devices connected without issue. A lot of the subtle changes are welcome (thicker blue bar while webpages load, the brightness slider and date from the top of notification bar, and many others that were removed are good to see back).