This place is off the beaten path. It isn't on a main road, located on the corner of 12th and Mifflin. It is a hidden gem. I have always been one of those people who left the crust behind. I never found it had any flavor so I would move on to the next slice to get at the cheese. When I eat a slice at Key Pizza I eat the whole damn slice. Even the crispy but not burnt crust has flavor. This pizza beats any pie I have ever had. I have eaten a lot of pizza at a lot of places. I am originally from New York and then moved to North Jersey. I now live in Philly. I grew up trying to find the best pizza. I used to be partial to this small pizza place on 2nd ave in Manhattan. Now, thank god I live right next to my new favorite, Key Pizza. The price is also completely reasonable. Another little treat you'll enjoy is their Mozzarella sticks. They are always done perfect too. The owner is a great guy and they deliver.
Pros: Not too pricey. Pizza is very very tasty. Staff is very friendly. Due to location it is not too busy even on weekend nights.
Cons: The only con that comes to mind is it is probably pretty high in calories.