The burger at this restaurant is the best I have ever eaten in Madrid so far and can match the standard I have eaten in the United States. Ordering is convenient; the waiter will give you a menu, you can tick the desired burger on it. The restaurant waiter spoke good English and was friendly and happy to introduce you to how to order. The burger was juicy and delicious. Because it was too big, it was not very convenient to eat, and the sauce was dripping everywhere. It takes a lot of napkins to eat this burger! French thin fries are also delicious. I believe wide fries must be super delicious too. The price is quite fair and depends on the ingredients of the burger you ordered. I can't wait to come back! highly recommended!