I downloaded and installed the latest version on my Raspberry Pi and I must say that, although I appreciate the effort put into this, it is not a very usable product. I am linking to my files via a Samba share. More often than not the screen will go blank and I have to restart the system. It locks up and the WEB I/F becomes unresponsive. It also only seems to have only one playlist. The ability to build, save and edit multiple playlists is a pretty basic and necessary music player feature that this player does not have. And, management of the one and only playlist is non existent. There is not even a clear all button. The audio player part of this device may yield good quality, but the ergonomics and user features make its use a frustrating experience. Please let me know when this has evolved into a more serious product. Right now it’s a pretty limited and amateurish effort. 
of course this is amateurish, man we also got real jobs!
There are plenty of third party clients available as well, which could work better for you.
Give a look here:
http://mpd.wikia.com/wiki/Clients
But you may be thrilled by sound@home android app… https://play.google.com/store/apps/details?id=com.digx.soundhome
more info here:
http://volumio.org/soundhome-multi-room-audio-system/