In my opinion this is one of the best and most authentic Spanish tapas places in Amsterdam. Everyday this place is crowded with young people and students from Amsterdam.
They have have Boquerones (anchovies), Jambon Iberico Pata Negra, Albondigas, Croquetes, and Escalibad, and they are all delicious!
The atmosphere is simple: wooden tables, running waiters, sharing tables. In short a real eclectic, Spanish treat.
The service is quick and good. Last time I had to wait 15 minutes for my table, I was told by the waiter, but within 7 minutes my table was ready and I was ready to order. I love it!