After much research on tapas places in SF, we decided on this place. We were a little nervous as they don't take reservations, but we turned up at 9pm on a Saturday night and they seated a party of 4 within 30 minutes.
Service was fast and attentive, very knowledgable about all the food. The tapas itself was really good - the jamon was fantastic, as was the grilled octopus. Brought me back to Europe, food really is fantastic and the sangria was great too - but the best of all was yet to come. Tapas for 4 people (and we ate a lot) plus Sangria came out to just over $100 - for the quality of the food and the atmosphere and service, this place is hard to beat. Highly recommended.