The only major knock that I have against the Elac Discovery is that when it comes to streaming services, it is limited to Tidal. The product itself is very nice, I evaluated one for my local dealer a few years ago, and at the time thought it a superior renderer to my first generation Bluesound Node N100 (albeit at a considerably higher price). The Discovery utilizes Roon Essentials, and although very nice for what it does, the Elac folks really haven't done much in terms of keeping it up to date. Only Tidal with no MQA support, no Qobuz, Deezer, or anybody else. Full blown Roon does both Tidal and Qobuz, as well as providing MQA support and much more. Roon Essentials is much more limited.
On the other hand, the Bluesound folks in my opinion have done a much better job of keeping their product offering up to date. Just about any streaming service you might wish to consider is supported by Blu OS.
It imho offers a much more open ended and cost effective solution.
Now when it comes to whether to go with something like the Bluesound Vault as your NAS with its own built in ripper or to go with something like dBpoweramp software and rip to your own PC, that's another question.
I personally went the dBpoweramp route. My first NAS was just an external hard drive plugged into my router. I eventually graduated to a Melco, but have continued to use dBpoweramp to this day. I like it. YMMV.