Yes, Yes and more Yes. The Southside Slopes (Kielbasa and Pierogis and onions on a bun) is the best before nap meal lol. The beer selection is top notch as well as the beer cave upstairs. The homemade chips are another reason to order food. I remember before a Aesop Rock concert once at The REX me and by buddy Ryan went here and just ordered a huge plate of those with just cheese and bacon, filling. I forget the name of the beer but it's like 10 percent alcohol, get that.
It's a little expensive but well worth the visit. One of my favorite Pittsburgh places to eat.