Z Pizza is definitely in the a-ok realm for me. I like that they have wheat crust available and that is centrally located. Other than that, I think the prices are a bit high and the ordering system/counter area always seems awkward.
Because of the awesome amounts of gourmet pizza available around town, Z Pizza seems to be one of the only places that you can get a quick pizza to go and not have to end up with a Hot and Ready.
Just an a-ok, middle of the road pizza place.