Only gripes I have so far:
1. When I disconnect the ipod, plug it in in the morning and start the car, it starts on playlist 5, but it's not really playlist 5, it's just a mishmash of all the songs on the ipod. Kind of annoying
2. Sometimes the playlist numbers will get mixed up (i.e. if I navigate to playlist 2, it will play songs from playlist 5, and vice-versa)
3. You have to hit the random button every time you switch playlists, rather than it just staying on.
All these things are minor and I like the kit so far.