If you've been out running errands and you're crashing and need a place for a casual gluten-free lunch, Mary's will do. But there's definitely better pizza out there. I ordered the cheese and pepperoni. The crust was thin and a little soggy in the center, but crisp at edges. The taste wasn't bad, but it wasn't great. The crusts are made off-site, supplied by local gluten-free bakeries. The pizza was also on the expensive side. The gluten-free pizza only comes in a 12-inch size and it costs about $17, before you start adding toppings. However, I did take leftovers home and was able to get two more lunches out of my pizza.
Even though the address for Mary's is on a main road, Oak Grove Road, you can't see it from the street. It's in the same shopping center as the Nob Hill grocery store. There are several other locations through NorCal. It has the feel of a family-style chain restaurant, which isn't really my taste, but I know it works for a lot of people. If I had no other options, I'd consider one of their pizzas for takeout, since reheating it in the oven at home would help to crisp up the soggy crust.
*I was not compensated for this post in any way. Items were purchased by me for personal consumption.