... and just to add, it took me 15 minutes to download, install and start up Volumio. I agree that some of the earlier interfaces for the Pi had a steep learning curve and were a little flaky. The learning curve for Volumio is hardly steep and it is the curve for a molehill not a mountain.
I would not know a line of Unix code if it was put before me and I never had to enter a single command line to get Volumio working.
Finally, I use the Pi/Digione because that gives me the best sound quality compared to other devices I have (e.g. a Cambridge CXN) or those I have auditioned.
Geoff