I am testing a wiim pro in combination with my Meridian system. It is fantastic piece of kit, does everything, sounds good and is dirt cheap. Comparing it as a roon endpoint to my 218+LPS reveals that the 218+LPS has a deeper soundstage and more detail. A 818v3 is potentially even better. I am using the wiim digital coax out into the 218+LPS and still I can hear the difference. For the price the wiim is great though.

Main: DSP8000SE< 218 < Farad Super3 TMCB < PS Audio P10. Room correction: Focus Fidelity.
Second: Fostex Fe206NV2 < Audio innovations 500 valve amp < Wiim Pro +
Study: DSP33 < Reviver < MS200
Server: ROCK + Tidal on NUC, fiber on 2x cisco 2960, HD-Plex LPS.
Gone: DSP7200SEu, DSW, DSP5500mkI & DSP5000mkI, 508.20, 210