Yes. I want someone able to tell me in a credible way whether something is worth buying, and Yahtzee does that better than most reviewers. I can't afford the time or money to play a lot of games, so I want someone able to clearly tell me what's worth it. As he's a solo reviewer, his own time matters to him a lot too, so he's going to behave like me as a consumer; pissed off if his time is wasted, and wanting stuff to stand out above the rest (this doesn't happen as much with review publications with teams of reviewers, who are given at least a little more time to work on stuff).
Also, he doesn't review in a conventional way, but that works better for me; if a mate was recommending a game to me, he wouldn't write a step by step 700 word review, going through graphics and replay-ability, he'd just mention the few main points that stick out in their mind and you'd probably would value what they have to say.