We've done Zpizza with a few groupons so I've had the opportunity to taste the mexican, italian, santa fe, thai, and a few of our own concoctions. I love the different sauces you can choose from - the chipotle pesto is surprisingly not spicy, but instead extremely flavorful and my favorite. My other favorite is the garlic sauce. They seem to be skimpy on sauce and I don't even like much sauce on my pizza to begin with so extra sauce might be a plus.
The one thing I struggle with is the "ambiance." If you're looking for just a great pizza that offers unique combos, flavors and even gluten-free varieties, its the way to go. But, the store is what it is... a small pizza place with a few tables and lack-luster atmosphere. I suggest pick up or delivery. But. all aside, still one of my favorite pizzas around!