I use this app a huge amount and i have to say onr of my maon gripes is inconsistency. Quite often they do a library refresh or completely losing albums and songs. When they bring them back you have to find them again to add to playlist. Option to add songs to library from a station has gone, you can only add to a playlist as it says "already added" when its a song ive never heard. The iOS version of this app is superior. Do better please amazon (unlimited subscriber)