hey - whatever lets you sleep well at night bob!
you posted the hard-sell, outlandish claim ’none comes close’ - to that, i say, simply not true, many come close (the op’s hint6 for example), and a number in fact exceed, in sound quality (a devialet, for one -- integrated one box solution with dac, AND phono stage, AND SAM, and configurability, or a hegel h190/390/590)
in my original reply to you, i stated clearly the nad is full of features, good on that, and it sounds pretty good -- for 5 grand it should, but for those who prioritize sound quality foremost, it can absolutely be bettered
you can then say, well the nad has dirac, it solves room issues (if done right) -- indeed, if room problems plague a system that cannot otherwise be solved by setup and room treatments, i might agree - but for me, i have no use for dirac, my room works, so i exited the m33 after 6 weeks, kept other integrateds that make music sound better to my ears