Horribly laggy, its a miracle when I can get anything I've downloaded to play. Crashes EXTREMELY often. Has good features like play next, but they never work, and moving songs up in the queue doesn't work either. Clicking on songs in playlists also doesn't work, so it's all down to shuffle and chance. Making new playlists just crashes the app, too. All in all, exactly what you'd expect from money-grabber like Bezos.