I like it with the THX AAA 789 and liked it with the CTH. It’ll pair well with pretty much any competent amplifier.
I have a whole thread on the RDAC, and various pairings, here.
Personally, based on listening, the minuscule library, and all the faffing about required (be it special software, hardware, or asinine file sizes), I think DSD at any rate is not a lot more than a distraction for those that are more interested in listening to “gear” and quoting “specs” and “fiddling around” than they are in enjoying music.