Avatar
iTunes Stats - Works Perfect, Recommended!.
Works perfectly and gives you an accurate reading of how many hours you've spent listening to music, how many songs you've played, how many you haven't listened to etc., etc. as you can see in the above picture.
Pros: All of the things that are included in it. Very useful and works great.
Cons: This is entirely minor, but sometimes the numbers overlap on the playlists. Nothing to worry about.