I'm working on adding more reviews. They are rather sparse at the moment, you're right. I like the single-person perspective as well; I've never found the multiple reviews on sites like Happy Cow or Yelp that useful either.
Once you know how a reviewer views thinks relative to your own perspective, their reviews become much more relevant to you. I read some critics even though I never agree with them, but because I know how they think and what they like there reviews are much more useful. "Oh, they didn't like it. Perfect! I will like this one."
I guess you're only going for pure vegan/vegetarian places? Because these days, pretty much all restaurants do at least some vegetarian food. Vegan is harder of course.