Just started using Volumio the other day - tried Raspify before that. Love it! Found a few small bugs when using Volumio beta, however.
Firstly, a lot of emails to pi are generated because the new volumio hostname is not reflected in the /etc/hosts file. It still lists Raspify. Update this to volumio and the emails stop. This problem also caused delays in sudo commands.
Secondly, I am not sure how Volumio differs to Raspify in terms of mounting NAS shares. I prefer to use NFS, as I am already running it on my NAS/server however it never seemed to work in Volumio GUI. In the end I installed autofs package (wasn’t installed?) and setup the /etc/auto.nas file to connect to my NFS share. Working great that way.
Am outputting directly from my RPi via the audio jack and find the sound quality is great. I know there have been a lot of posts saying the audio quality this way is terrible, but to be honest it sounds fine to me (not an audiophile, I guess).
Love the project and perhaps I can contribute in some way.