Awesome burgers. Excellently flavored meat. Perfect buns. Delicious appetizers (fried chicken skins make my mouth water). If you're not into red meat, awesome chicken sandwiches. Soups, salads, and vegetarian options--not to mention a humble and attentive wait staff. Not the best bourbon list to pair, but they have some craft beers, house cocktails, and Yuengling, so no complaints.
If you're on the hunt for the best burgers in Pittsburgh, definitely add this to your list. It's in my top five.