Let's face it. Those of us not from Pittsburgh come here because we saw it on TV. It's the novelty of it--doesn't really matter if the food is good or not. For those who are interested, I'll give you my impression of the sandwich.
The sandwiches are okay. It's the experience of eating a sandwich that has fries and slaw on it that's cool. If you were to remove the fries (like most people are forced to do given it's size), you have a sandwich that's pretty average. I had the pastrami and cheese. Not a whole lot of meat means the flavor of even this spicier selection was overwhelmed by the taste of potatoes. The slaw adds a nice crunchy bite. The bread is totally forgettable. It adds no flavor or texture of its own and is there merely to hold the contents together.
This location is not great for lunch. It shares space with a much larger cigar bar that relegates the lunch area to a cramped space in the rear. Go downtown to the one on Market Sq or the original in the Strip District to get the full experience.