iTunes 11 looks good, but so far it has been very slow with editing and syncing. When I edit the tags on a single file or a group of files, I got the spinning wheel for 5-10 seconds before it is done. When I did a sync with my iPod Touch 4th generation, when songs were copied from the computer to the iPod they took about 3 seconds per track; in the past it was about one second per track. I haven't done the math but if you were to sync a large library, e.g. 10,000 tracks, it would take a loooooooooong time at that rate.