I use this app all the time, and while it's adequate for my use, it is quite buggy and crashes a lot, no matter what device I'm on. One of the worst parts is how cumbersome it is to reorganize playlists. Car Mode is quite terrible. My Soundtrack needs to sum up your last 50 songs, not your last 3. Also, this app has an absolutely massive file size! There's almost not room for it on my phone!