In the original news/thread/post of the amber update for L920, there are a good no of ppl whose updates were unsuccessful. Either their phones bricked or lost some functionality in some of their apps or phone features. But I'm sure there are also a large no of users who have had success with the update thus do not find the need to post. Just to get an unscientific gauge of success vs failure rate, I'll start off with my saying that mine was successful. My favorite new feature/app is ProCam and TaptoWake. Not so much need for Glance but it's welcome anyway. Pls drop a short line with ur favorite. Thx