installed on both my pc's and tablet around the 10th - seems to work ok, only issue has been my audidgy 2 but everyone i know who has one has issues regardless of OS/SP
my issue is if watching a film in any media player app and i "mute" the sound in the app then pause the film and then resume the film it will play back full volume.
Other than that sp2 seems fine but i have read some horror stories but i imagine the pc's it cocked up where badley maintained.