Just about as safe as you can get in a regular sandwich shop. The staff came out and explained their celiac protocol to me before I ordered (they wash their hands/change gloves, use separate surfaces and utensils, grab from fresh bags of toppings) so I decided to go for it and didn’t experience any symptoms!! They said that they have lots of celiac regulars and were very happy to accommodate me, despite the extra effort required.
— Somewhat
— No gluten-free information on the menu
— Most/All
— Good