This is not your usual mp3 player - it keeps the library and it's up to you to remember what you want to listen to, so you move titles from it to the playlist. It forgets the playlist when you restart it. If you're a DJ or any other setup where you pick the songs to play, it's great. If you want something to play music for you automagically, as if by a computer, this is not the app you were looking for.
Very easy to use with a great interface. Thanks