I've been enjoying Mangia pizza for a while. Just tried Upper Crust.
Ordered large pizza with proscuitto, fresh basil, garlic and fresh mozzarella and a Greek salad. At $15 for a regular large pizza, it was $3 more than Mangia. All toppings were $1.50 each (most at Mania are $1.50 each, though some higher).
Salad was pretty much a generic delivery type Greek salad. Delivery was faster than they predicted, pizza was warm when it arrived. Pizza was tasty. Crust was thin and generally crispy, though a little soggy in a few places. Some chunks of tomato. Seemed somewhat dry overall and a crust was a bit tough.
Upper Crust and Mangia are located very close to each other -- both going after the up-scale pizza crowd. Will try Upper Crust again, maybe in a head to head taste-off. For now, I vote for Mangia.