Update went perfectly for me on my wife's DX2, but have had one spontaneous reboot on power after the initial boot up. Downloaded the pre-rooted zip file this AM to be sure I had the latest. Booted into recovery, wiped cache, dalvik cache. Selected install zip from sd card, browsed to the file and selected it. Install ran w/out issue, no errors. Rebooted, phone came up quickly, 2.3.3 confirmed in settings>about. Seemed smooth as silk initially, but phone rebooted on it's own while sitting on power after a few minutes...we'll see, but before the self boot it seemed perfectly fine.