We usually had a latest CJ and ARC model in our listening room.I have very limited experience with CJ but ARC is great stuff, IMO. If I wasn't an Ayre-head, I would probably have ARC (or Aesthetix or a John Curl design).
There are one or two Thiel owners here on A'gon who use ARC to drive CS2.4 and, even, CS3.7 using ARC.