Meh, can't get too excited about an airport.
Aside from the fact that the lines can be pretty long during the week it's pretty much A-OK.
The McDonald's here is awful. I mean I know it's a McDonald's but even by those standards alone it is bad. Worst McDonald's ever.
Pittsburgh has significantly fewer hipsters prancing around in their costumes with their noses in the air. This awesome fact alone is worth a whole star. ;-) So 4-stars overall.