Been to Pittsburgh many times, have eaten all over the place. My favorite for pizza is Mercurios. Baked in the neopolitan style in a wood fired oven the along with use of fresh ingredients is their recipe for success. The shop occupies a bright cheery space in the Shadyside section of Pittsburgh. As an added bonus enjoy a tasty gelato a great way to top off your meal. Good prices good service and pleasant atmosphere.
Belisimo.