I like his reviews/disassembly vids. Nick Shabazz is probably one of the most influential members of the knife community on YouTube and he's helped teach a lot of people about knives. He gives it to you straight, including when he changes his opinion on something, and knows a lot about knives. He's not there to tell everyone how cool he is, has got a good sense of humour, and a bias towards smaller knives; so I take that into account. You're not going to see a ton of reviews of big survival or tactical knives, which is not a big deal because there are plenty of video reviewers out there who are into bigger knives.
When Nick talks ergonomics, I have to remember that he has smaller hands than I do, so on that one point I'm going to be making handle size purchase decisions more from what someone like David C Andersen from KnifeCenter says, because he has big mitts like me. David C Andersen is there to sell knives though, so when he says it's a bit small, but still usable, the handle is too small for me.