The sandwich isn't really that special or good...BUT AT THE SAME TIME IT IS!
This is a Pittsburgh classic! A MUST! If you come to Pittsburgh...you go to Primanti Bros and get a Pittsburgh sangwich.
My personal favorite is a cap&egg (Capicola and Egg Sandwich for those of you who aren't familiar with this shining example of sandwich perfection). They put Capicola, Egg, and just as they do with every other sandwich there, FRENCH FRIES AND COLE SLAW ON FRESH MANCINI'S BREAD. I think hot sauce tops it off but..do what you must to make yours perfect. (I'm telling you though..hot sauce is where it's at. trust me. I'm a Pittsburgher)
Don't know what it is..but this bizarre combo of foods make it an awesome treat and a staple food for Pittsburgh natives.
If you don't get a Primanti Bros sandwich while you are in Pittsburgh...it's like.....going to Oahu, Hawaii and not going to Pearl Harbor...like going to London and not seeing Big Ben....LIKE GOING TO NEW YORK AND NOT SEEING THE STATUE OF LIBERTY. YOU JUST HAVE TO OK?!