This is a huge, noisy, very colorful food market with the same layout that you'd find in the other Pro's Ranch markets.  Lots and lots of inexpensive food items including many things you won't find in most supermarkets, especially if you're looking for ingredients for Mexican cuisine. The market is well-organized, with distinct areas with huge signs - Carniceria, Pescaderia, Jugos, etc. And do try the in-store eatery / taqueria which serves good street tacos, enchiladas, and other standard mass-appeal Mexican dishes.