This is a gelato and pizza shop. The gelato you can get any way you like. The pizza only comes their way. No build your own pie... menu offers about 15, or so, combinations with a "no substitutions" note.
Also the sauce is sweet, so great! If that's your thing. But it's not mine. I also like to mix up my toppings. No can do.
Service was adequate. Clearly this is a well loved local establishment, so why not give it a try!