My first DAC was a Lumin D2 with an LPS.
The sound was very good, musical, detail, depth, I was very happy with SQ. Unfortunatly, the app was a problem. Connectivity, chashes, post upgrade lack of functionality and system recognition. Support via trouble tickets was less than ideal.
I replaced it with an Aurrender N20 and since added a second to my home. Both are excellent pieces, SQ fantastic, tech support very good, IMO the best app of a pure streamer solution.