I realize that, and am not expecting it to work any miracles. But by all accounts, it appears that Dirac (or ARC, but between NAD and Anthem, the NAD seems a bit more feature rich except for inputs) is as good as it gets for auto EQ software, with the exception of perhaps Trinnov. It just may help me get a flatter bass response.
I was first planning on trying REW with manual PEQ on the Yammie, but I can only use I think 3 or 4 filters for freqs below 500hz, which I doubt will be enough too smooth out the lower freqs. I can then try to get all kinds of external devices such as minidsp, etc, but I may then as well spend a bit more and have it all in one box
Ideally I'd move everything down to the basement and treat that room properly, but it's currently unfinished and the furnace/hvac down there is loud as hell (and it'll probably be years until we do anything about finishing the basement or replacing the furnace).