Had the Pastrami and Cheese, and I learned that I don't care for French fries and cole slaw on my sandwich. They don't put much meat on them either.
The place was packed, and had great murals of famous athletes, and it had a fun atmosphere. The bathrooms are in the basement, dirty and kind of creepy.
If you like your sandwich to be packed with fillers, good for you. We have a few NY style deli's here in AZ that load you up on the Pastrami, in my opinion, a much better sandwich. So I can say I've been to Primanti's, but I can't say I'll be back.