Let's give Paul a break here...
Yes, he's passionate about the Cayin, and I appreciate that. Passion is a good thing, it drives the hobby.
I see many other people, a lot of them some of the more respected people on the site, talking about other brands with a high level of interest and passion as well. A lot of us are guilty of this sort of thing. The Cayin stuff is well put together and attractive, in addition to good sounding. And, no, I have ZERO affiliation with Cayin, or anyone selling it.
I trust Paul enough that when he gets his Cayin, he'll be honest about it, good or bad. I think he deserves the benefit of the doubt here.