Yes to Bostonian. Which is exactly why I love Amazon and used it as my example. I tend to look at both the recent reviews, the lowest rating reviews, and some of the three and four-star ones, which often have pro's AND con's associated.

Yelp and things like it don't (typically) encourage that much nuance. A star rating system without the commentary isn't very useful.

Schrödinger's cat walks into a bar. And doesn't.