What do we know about City of Pittsburgh? It has lots of bridges, 446 to be precise. Andy Warhol was born there. Carnegie Mellon University, a decent school, is located there. Its professional football team is popular with the residents.
Like Yelp, reviews on Glassdoor can be either highly informative or terribly useless. No matter what is said, it’s usually in the best interest of TPTB to ignore the negative reviews and move on, knowing in their hearts that you can’t please all the people all the time.