For me (and I think I'm in the minority here), Fat Heads is a mixed bag. They have a great beer selection and so many tasty beers that warrant a five star review. On the other hand, the food is just mediocre and I feel like the service is really slow and the wait is so long, which combined warrants a three-star review. So, I'm going with a four-star review here, but I'm not overly confident in my rating for once.
They are known for their wings and headwiches. I've sampled quite a few of the appetizers and they are all good bar food but nothing to write home about. For good beer and a Pittsburgh experience, I recommend using the no wait app and swinging by but if you are looking for out of this world food, I wouldn't brave the line.