1. No way to turn off autosync. If you delete a song from your library, there's no way to stop it from deleting it from your Zune. Goes the other way too, if you add something to your library, there's no way to get it not to go to your Zune. Well, there are buttons to turn it off, but they dont work.
2. It only shows artists that you have albums cataloged under when you're looking at your device in it. Which means if you want to rip a single song back to your computer, and that's the only song by the artist, and you dont have full album info for it, you have to look through it in the song list.
3. And good luck with that, because it doesnt show all the songs. I'm missing a handful of them on there, even though they're still on my Zune.
4. It deletes and changes around album art randomly.
5. No way to change album or artist info after it autofinds it. No way to turn off updating this information automatically...well there is, but again, it doesnt work.
6. Even if you enter the album and artist info yourself, or it cant find it, you cant drag and drop it into another album or artist like you used to be able to. You have to go to Windows Explorer and change them all manually there to get it to go, and that doesnt even work half the time.
Seriously, they took simple, user friendly software that did everything anyone needed (true, not everything everyone wanted, like useless s**t such as wireless sync, which they now added), and worked great, and they turned it into a broken, buggy, rushed software that's nearly unuseable.