Interesting experience in the basement vault of Qubana. It's a small and intimate space. You enter the restaurant via a small lift, and there are some tight corners, so not accessible for mobility scooters or wheelchair users.
Service was lovely and friendly, very helpful. A wide choice of Mexican food, including a good kids menu with choice for those who don't like spicy food.
I'm gluten free and there was plenty of choice for me.
We'll definitely be going back!