Ate there today during a busy lunch rush, and I had great, knowledge service. Gluten free corn chips fried in the morning with clean friers. Corn tortillas are available with some of the tacos, but you will need to ask for clarification on which ones. I went with the vegan bowl, and I had a great lunch. Will be back!
Your experience will be entirely dictated based on if the restaurant is busy and what waiter you get. Last night they were busy and the waitress didn't know anything about what entirely unwilling to answer questions about the menu. We should have left after that. Beware the shrimp and fish are marinated in beer and that is not mentioned on the menu.
They make their masa corn tortillas in house, completely gluten free. More than half of their menu is naturally gluten free. Other items can be modified easily. Not a dedicated gf facility, but not much gluten on the menu to contaminate. Friendly, trendy, inexpensive, and delicious!