I tried ARC, CD12 and Audiomeca mephisto IIx (head to head listening comparison).
All three units are truly good. What shall make a difference is how synergistic they are with the rest of your equipment. I ended up choosing Audiomeca, since it is as musical but with a wider soundstage than the CD12. A great player/dac indeed.
(I am a former musician, and listened to jazz and classical).