Local dining icons deserve their own criteria for recognition.  That said, adding sliced tomato, coleslaw and a pile of fries to a deli sandwich defines the Primanti as a Pittsburgh-area institution.  Their cheesesteaks will never threaten the best of Philly's, nor will their pastrami or corned beef be mistaken for New York deli; this only serves to make the Primanti style unique.  I find their meats to be generally good, and reasonably generous.  Tomato on a corned beef sandwich can only be regarded as an acquired taste.  Personally, I'm not a fan of loading a sandwich with fries, but again, this is a matter of preference.  The assembled work is a massive sandwich which invites a machismo-driven, face-first dive into its mismatched imperfection.  After the second or third surfacing-for-air, the conclusion I've always had was of an enjoyable adventure.  Prices are downright cheap.