Gluten-free review:
I came here for lunch on a weekday with a coworker, which is exactly the type of crowd that comes here. Food is pre-made and packaged in to-go containers, which you select and bring to the cash register. All items do not come with soy sauce already on them (woo hoo), but of the few hot food items they have available, most were breaded (womp womp). They did not have gluten-free soy sauce so you're eating your sushi as-is.
I got two packs of nigiri - one assorted container and one of just salmon. Each contained 8 pieces and were priced at about $7 each. The fish tasted surprisingly ok for the price point - not terrible but not the best I had. The rice though was meh. It was just plain rice, not delicious sushi rice.
TL;DR sushi is decent but nothing special