One of the most important things for a proper pizza is a proper oven. I’m not sure the stuff they mail you would be as good. A proper deep dish is hard to find locally though.
No fucking duh. Thats why when you order a pizza from a different state, the pizza tastes like its from that state! The dough, cheese, sauce & everything... They pre-bake it and freeze/ship it. You could eat it cold the day it arrives!