In my opinion, no, if compared to Marantz or Denon's. My rationale is, let's assume Anthem ARC is really better, but for $20, you can use the Audyssey Editor App to:
- disable the mid range compensation dip (so called BBC dip) that Anthem ARC does not do.
- limit correction to below the room transition frequency, say 250 Hz.
If you do the above, given that Audyssey XT32 is very capable of dealing with room issues from 15-200 Hz, I highly doubt you can hear the difference between the two room correction system in that range.
You should be able to get the SR7012 or AVR-X4400H for under $1,000 and you get two extra channels of amplification. Based on past S&V bench test output data, the 3 should be very comparable in output into 8 and 4 ohm, 2 channel driven.
Edit: Forgot to mention that those newer Anthem AVRs, but still older being 2016 models, have class AB amps for the front 5 channels, the other channels are class D and are rated for much lower output.
Online or magazine reviewers, as usual would have high praise for such products, as they almost always do.... Why? YGMV, my guess is, 2 words, boutique brand expectation biased.