I already employ 2 Pis with RaspBMC/OSMC - 1 for me and 1 i set up for my brother.
Picked up the latest Pi for other projects - currently a music setup.
Looking for quality sound and easy GUI access by phone/tablet.
I can see that Volumio only just added Spotify so developments to come.
Only installed it this week so will have a good play this weekend to see if Volumio meets my needs.