I think it may work better for you than YPAO alone, but to do it with REW, you have to invest $200-$300 on a Mic and a minidsp product. In my experience, it didn't really add much value to the Audyssey XT32 that I already have. I tried it on my two channel system but again it didn't do better than JRiver's parametric EQ filters. So now I have the hardly used minidsp back in the box sitting idle.
That's just my experience, as far as I now
@Pogre likes it a lot.