Harris Grill is a good Pittsburgh standby--a place I like popping by when I'm back in town. The atmosphere you get is so mixed though, depending on which crevice of the joint you get stuck in. The upstairs corners are invariably awkwardly cold or quiet, but the patio is awesome. The quality of the food is also as mixed. Sometimes the burgers are absolutely scrumptious, sometimes they're overcooked and chewy.
Whatever. I like it anyway. Bacon night, frozen cosmos. What more do you want.