This place is the worst! I literally signed up for Yelp just so I could save other people from having to experience this dump.
When I called in to order, a loud phone kept ringing in the background, and the person taking my order kept brusquely ordering me to "HOLD ON!" I had to repeat my credit card number about 5 times because it "wasn't valid" the first 4 times. So you can imagine how I might have doubted the delivery person's claim that my cell phone "didn't work" when he tried to call me. The delivery man also reprimanded my father-in-law, who tried to take the pizza from his hands: "DON'T DO THAT YET!" Maybe he thought we were going to snatch the food and abscond into the bowels of Presbyterian hospital without signing the credit card receipt.
The food was mediocre. Pizza was barely above room temperature with congealed cheese. For some reason the wing sauce was served in a separate cup instead of being put on the wings. Nobody hated their food, but I'm pretty sure we won't remember it tomorrow.
The celery (which was included at an additional $.69 per wing order, despite my never requesting it) was FILTHY. It was literally covered with dirt that I could scrape off with my finger nail. That is reason enough never to return.
I don't always travel to Pittsburgh, but when I do, I will NEVER darken the doors of Pizza Bellagio.