I recently moved to Pittsburgh from the west coast and I relied on Yelp to help me find some good Pizza. A friend was in town so I took him to Mineos. The pictures on yelp didn't look good but I trusted the reviews. Bad Decision! Neither of us thought it was good and it has been a running joke ever since. The pizza tastes about as good as it looks in the pictures.
There are a few restaurants here in pittsburgh that have high reviews but not good food like Primanti brothers. It must be a regional taste or faked reviews.