Great marketing to let an obvious fan (check his history) who loves writing get an early look at your product.
"I also paid full price for this HomePod, with my own money. I paid for all the equipment to measure it with, and I own every speaker in featured in this review."
This is very clear too:
"Neither KEF, nor Apple is paying me to write this review, nor have they ever paid me in the past."
This wasn't necessary, in my opinion, but again is very open:
"At the same time, I’m a huge apple fan. Basically, all the technology I own is apple-related. I don't mind being in their ecosystem, and it’s my responsibility to tell you this."