I enjoy Jay's videos because he gives us a close look at some really great equipment that we don't always see on YouTube. It seems the channels are endless that show $300 amps, but not many at the ultra high end. Even thought I'm not in the market for $200k speakers or $150k amps, I find it interesting and he has some decent deals on used gear.
I don't know what his deal is with manufacturers, but I've heard him point out negative aspects of some of this equipment, something you won't often find from the mags or most YouTubers. I discount Jay's subjective opinions, but I do that with most reviewers-no one can tell you what will sound the best to your ears.
I rate Jay several notches above Huff in credibility, but I'm not in to communing with the dead-if that's your thing, all the power to you.
So, good luck to Jay.