The staff is not knowledgeable about gluten, and they aren’t prepared to make special dishes or protect from CC, but I’ve been able to eat their shrimp cocktail, I ask for preparer to wash hands first and for a plain cocktail with just onion cilantro tomato and avocado, and their side of beans and their tortillas (confirm they are 100% corn and no Maseca) without incident. I got sick once from their specialty which is a baked whole fish with sauces on it. Since then I don’t trust their recommendations but take the small risk on these very simple dishes. And love the tortillas!
The food is great--one of the best I've tasted, in fact--but don't expect to have a nice evening here. We explained to the waiter that we couldn't have any gluten or dairy, going as far as listing all the specifics: no wheat flour, no soy sauce, no butter, no cream, no bread, no breading, no marinaded items etc., but still they managed to mess up two times. First they brought us some "tostones de atun" which were marinaded in soy sauce, something which we noticed too late, and then when they brought us the entrees I could see the french fries on my plate were frozen. I specifically asked if they were frozen, and the waiter said he was sure they were not. I asked him to please ask just in case, but he said he was 100% sure they weren't. So I went, ok! Tl;dr Don't eat here, I almost passed out from the allergic reaction as they have no idea what gluten is.
They don't have a gluten free menu. We brought some Celiac Spanish cards that explained what we could and couldn't eat. They were very accommodating and were very helpful in helping us choose things we could eat. We had a GIANT red snapper, beans, tortillas, mezcal margaritas, ceviche, and table salsas. Everything was absolutely exceptional. At the end they come around with dessert options, none of which we could have. The gentleman came back a few minutes later and offered us fresh mango. It was fantastic. You should be able to speak a bit of Spanish to eat here.