I've eaten there twice. The first time I had no problems at all, but the second time I got very sick.
Very nice, helpful and knowledgeable on gluten. Their to-go soy sauce packets are gluten free like mentionned in someone else's review. I told them about the allergy and they washed the cooking surface. Their asparagus was pre-cooked in soy sauce so they warned me and made sure to take it off my order.
Enso has their gluten-free options clearly marked on their menu, and there are plenty of options! Their to-go packets of soy sauce are gluten-free, so ask for those even if you're eating in. I really like the sushi! For the price and the quickness, it's really good.