UnderstoodYes tailor Dirac Live is not free ... But it's not mandatory . You can use audyssy setup which brings good room correction for Denon.
Build quality of Denon is not inferior to Yamaha , At the same time yamaha AVRS are at par with Denon , their sound signatures are slightly different. You need to choose depends on your personnel preference , and you will not neglect decision going with Denon either.
Thanks man