I find it interesting that people love to hatchet others that they don't know on the 'net.
@livinon2wheels
I've known Danny for many, many years. He and I don't agree on everything and that is OK. He is extremely well respected in the industry, customers and reviewers because his designs bring the goods. Trashing a person and gear that you don't know is the best way to get the rep of being a troll here. His speaker upgrade service is ~ 5% of his business and he does not charge for the design work. He makes his $$$ on parts used to build his design.
There are reasons that "The GR Research" rooms at audio shows were consistently judged among the best in SQ at those exhibitions. I was at that RMAF he referenced in his video concerning the Wilson Audio room. The Wilson Alexandria X2 ($158,00.00) driven by VTL Siegfried monoblocks ($65,000.00) were a huge disappointment. Too loud, too harsh in a room with zero treatment.
Perhaps you should familiarize yourself with results:
https://www.audiocircle.com/index.php?topic=99738.msg1004792#msg1004792