I can't relate to the negativity I see here. I like Yelp quite a lot. There have been a number occasions where I've found an excellent local restaurant that I wouldn't have otherwise found.

Admittedly, you have to know what you're doing. If you're in a food desert, like some parts of the US, you'll need to take those 4 and 4.5 star restaurant profiles with a grain of salt. What I would really like: the ability to select other users whose tastes are similar to mine that Yelp would then use to influence the ratings I see. This might also protect against paid spam reviews and over-picky reviewers.