This app is great. It is intuitive, and runs smoothly. No bugs. The company keeps updating it to add features and additional music services. Bluesounds customer support is very responsive and helpful. Contrary to another review, the app is not "alpha" quality. It is a fully mature app, that I have been using for nine months now. You CAN add songs to the play queue. You CAN browse albums and songs by genre. You CAN both create or import playlists. You CAN browse by folder (although Im not sure why you would want to do that, when there are artist, album, and song views.
All the way around, Bluesound is a fantastic music system and app to go with it. I own a Node attached to my music system, and a Powernode in my home office with some bookshelf speakers, and am extremely happy with the quality of the system. I highly recommend Bluesounds products.
BigLouDog about BluOS Controller