Hi
Having heard of Volumio I have taken the plunge. Spent most of today trying to connect to my NAS, then I found the thread advising the fix ‘option vers=1.0’. Now to enjoy.
RPi2 and another rPi 3 using another player. Spotify Connect is welcome.
Welcome to Volumio 
If you have two devices you might want to check out the snapcast plugin at some point.