I think this is a underrated "product" in this Forum, I came to this conclusion just now in another thread to help another forum member.
Please join in by talking about your experience with Synology NAS and about using their DS Audio app as a streamer if thats the case.
I've got my NAS since 2013 and my main use of it in the first place was to store my music for the Squeezebox Touch.
But one day I connected the NAS strait to Rega DAC and NEVER went back, the interface is simpler to use and the most important for me is the Sound quality achieved this way.
The interface upgrades provided from synology are constant and this is a ongoing product (DS Audio App) for them as well, I don't know if they were expecting to sell the number of NAS they do for audiophiles, and other curiouse users, not PC geeks, that get them to their domestic interface.