This is a chain of seafood restaurants, with branches throughout Mexico City, and also in other cities such as Puebla and Acapulco. The Polanco branch at  Avenida Horacio 232 is always packed at lunchtime, so it's best to arrive early to be sure of a seat. (Mexicans eat lunch late). The tables mostly have high stools or, if you are alone or a couple, you can sit at the bar that fills most of the central space. Decor is bright and modern, with broken tiles and an aircraft suspended from the ceiling. The food is all prepared more or less in front of you and is deliciously fresh. Even the oysters are worth risking here. The various seafood tacos are a perennial favourite and there is decent wine by the glass. Prices are very reasonable and it's a great place for people watching, since it's well patronised by the well-heeled folk of Polanco and business people. It's all very informal and can get quite noisy, so not the spot for a romantic meal à deux.