I'm living with a Sim Audio Moon 380D. It does not have the optional streaming interface and due to limitations with my internet connection, streaming isn't something I'm all that interested in. Certainly, a worthwhile step up in DAC performance would be nice, and/or a better server or combined unit (Ripper/Server/DAC).
@rooze, I used a 380DSD for ~5 years and really really liked it. For no reason other than assuming newer DACs must sound better, I sold it and started shopping for a new DAC last year. I tried the Bricasti M3 and although I liked it, I was disappointed by the sonic differences (it did some things better to my ear but I still preferred some traits of the 380) so I sold it and tried some other DACs (mostly much cheaper). I was tempted to just find another used 380DSD when I found a used Mojo Audio Mystique V3 Balanced DAC (R2R NOS) and I found it to have a similar sound to the 380, just lots more of what I like, plus I think it has the bass and dynamic punch I heard from the M3 which was really good in that regard. Streaming CD quality recordings through Roon from either my NAS or Tidal sound amazing to me with this DAC. I paid ~2X for what I sold my 380DSD for, and for me it was well worth it. Good luck with your search...