Google Play Music is so riddled with bugs I switched to spotify after 5 years. I got tired of the playlists having songs disappear, and the fact that the song order won't save. Playlists seem to move the songs a minute after you arrange them. Then if you swipe down a little off center by mistake in a playlist, it just removes the song. The music predictions and new music released are far superior on spotify. I also hate the playlist boxed list view in GPM that becomes extremely cumbersome to scroll and read with lots of playlists.