This is a dedicated GF restaurant, the place is small but they have many options in the menu, I had the Pad Thai with shrimp and it was delicious, price was around 15 usd including tip and a maracuya juice with stevia, highly recommendable place.
The sushi servings are massive and good variety. They also serve Chilean staples like completo and empanada. Everything is delicious! They also have a good selection of vegetarian and vegan items, and are very open to modifying the menu. They are 100% gluten free, so very safe for coeliacs. The seating is not fantastic (very small, cramped place with plastic tables) so I would not recommend for a romantic evening :)