A very old tapas bar on our tour and we really enjoyed it. Many historic documents hung to bee over…read morethe last 100+ years. A little more pig tapas, but the egg/potato was the feature. I'm struggling to remember the Spanish name, but that might be the Sangrias fault.

My friends and I always discuss about the feasibility of this place…read more So this is how it works: 1. Wait for a while (there's always people) making a line surrounded by loud and already-drunk people. 2. Order a drink for 2,5€ (beer is what everybody drinks, but you can also have tinto, or any soft drink) and take it with you where your friends are. 3. Go back to the bar and take some tapas the waiter has prepared for you. It's great that tapas are "for free". Even though the drink is expensive, you will always have huge plates of whatever they have. They always give you "Bravas" (and they are great) but also "croquetas" or sandwiches. The good thing about this place is that you can have an extremely cheap dinner. Bad things? It's always crowded and hard to find a place to seat, you can't chose what you're have for eating (and healthiness is not their thing), and waits take too long. However I've already been there 2 times during the past week!

I had heard about Sierra from a few friends and seeing as it was in my neighborhood I decided to…read morepay it a visit asap. I knew what to expect. Your typical El Tigre type of bar heavy on the tapas but a slightly more expensive drink. Did I leave disappointed? Course not. If you're a food snob or in search of the chic dining experience, this is not your place. When you come here you're looking to eat, really eat. Get in line and order any standard drink, Even non-alcoholic, and be prepared to receive a substantial portion of tapas. Tapas include bravas, chicken wings, croquetas, and grilled cheese sandwiches. This isn't gourmet. What it is is a humble, cozy bar frequented by everything from universitarios to older couples. Come ready to eat and try not to overindulge. It happens. ¡Aproveche!

Food and trash all over bar food looked ok but the food on floor created uneasiness and concern…read moreabout possibly getting sick

Creative and delicious food, filled with locals, and a very friendly staff even to us tourists who…read moredon't speak any Spanish. Highly recommended! Patatas ali-ola de peras is brilliant, and perfectly executed. We didn't order the pollo krispis (chicken covered in Rice Krispies and lightly fried) but they are clearly a hit here with the locals.

Very delicious food! The menu was also in English which helped. The service was great and very…read morefast. I highly recommend gambas al ajillo !

Each beer you gets come with a tapa which get progressively better. Have spent many, many hours at…read morea time here. Good ambience. Cheap and simple. What more can ya ask for?