I sold the XMC-1 and bought an Anthem AVM 60. For me, it was a good move. Sounds great, no more issues, my HDMI sources connect fine(4K HDR and Dolby Vision pass through fine), I have Atmos capability, and good room correction(with good software support).
I had a Harmon Kardon receiver a long while ago that I liked. McIntosh is a different income bracket.