Such a fun place and the food is pretty good. I didn't realize Peppi's was a chain and just happened to stumble upon it on one of those lists on thrillist. The item that was featured in that list was the santucci sub. It's a hot mess Italian sandwich with double meat, double cheese, grilled peppers, mushrooms, and the like. HUGE. I got one and turned it into three meals. They also sell coke products..and that includes barq's red cream soda, which I hardly ever see like, anywhere.
Anyway, the sandwich was a ton of food, as mentioned and all quite tasty. If you eat a lot of sub sandwiches, you may find this place pretty average. I don't actually think that the components stood out for any particular reason but the sandwich as a whole was really good - also I don't eat that many sub sandwiches so I don't have much frame of reference to compare to.
In addition, the staff is so fun! As I was debating ordering a drink to go with my sandwich, we had an argument about coke v pepsi (to which the answer is pepsi, duh) and the guys were joking around the whole time that my friends and I were waiting for our food.
This particular location had a small seating area behind the ordering / prep station but we took our food to go. I'm not sure if all locations have seating area..I didn't actually realize this place was a chain until quite recently.
I don't know about parking in this area. Probably not great since it's downtown. If that deters you, try another location. There are several around and those probably have better parking options.