I got the update last night and honestly, I'm not that enthused by it. Now I haven't played around with the phone that much. Grant it, it is smoother. The only thing I noticed is when I play the stock Music player, couldn't figure out how to close the app. I cleared all the apps in task manager, but still ran in background. Use to be there was an X in the Notification bar at the top to hit to stop the app or I could hit Exit in the menu of the music app. Can't find either now. I finally got it closed, after going back to Task Manager and swiping it off there. I liked the old Lock Screen better, with the Notification bubbles it had for texts and missed calls. No problems really with anything yet. Just was expecting so much more from the way everyone was so anxious to get it.