Absolute Yinzer classic! Doesn't get better than this folks! Definitely a must to take your out of town guests, I recommend the original in the Strip District! It's open 24 hours, perfect for a drunk snack after the bars. (Don't drink and drive kids)
Last time we went I got the "Pittsburgher" which is a burger on that amazing Italian bread, sandwiched between a tomato, fries and slaw. Perfection!
The atmosphere is a little divey. Keep in mind it's been there, in that location, since the 1930s. I wouldn't have it any other way!