I never heart the D1 dual without reclocker because the D1 server is the only source I use. I don´t have NAS, only a SSD-drive into the server (seperately powered from 5V battery - I ordered a Uptone Regen to clean up the USB data).
I don´t like the fact that you have to use different apps as MPad and Ipeng for different sources coming from NAS, SSD or Tidal/Qobuz. MPad is really basic and it has some bugs. Hoping for a better app in the future. There are other servers with better ease of use for sure, but everything sounds really nice from the D1 server.
Thanks for the valuable info. My setup would look a bit different from yours: NAS for storage and a console app 'ncmpcpp' to control mpd. When i'm not using the computer, I would have to rely on something like mpad.