We've always been seated pretty quickly, I mean we went on the Saturday of the Tour de France at 1pm and had to wait half an hour, which turned out to be 20 minutes. I don't think that is bad at all and the staff have always been nice, polite and helpful. When you get given a seat (and you can choose between the terrace, balcony or inside) you are given a slightly overwhelming menu with Street Food, Sharing Boards and plenty, plenty of drinks.
I've always had food from the Street Food experience, though me and the SO have talked about getting a Sharing Board next time we go, just to try something different and we like the same sort of stuff (in food anyway).
The Street Food experience means that you pick three dishes each from the menu and pay under £12 each, which for the amount of food you get is brilliant. Between us we picked, the stuffed jalapeños, North Yorkshire rump steak quesadillas, spicy pork tacos, chorizo meatballs, Oaxacan style sausage quesadillas and Chorizo, potato & ranchera salsa tostados (but as tacos). I'm not a fan of how crispy the tostadas are but they were more than happy to put the same fillings inside a taco for me.