We stayed at Sergio's apartment at the end of our trip to Spain. Natalia met us to give us the keys and a run down on the apartment. The apartment was big and was as described. We had everything we needed to make our trip comfortable. Near the Tirso de Molina subway stop. The area felt sketchy, especially at night, but the building felt safe with a locked outside door, a security person, and a nice lock on the apartment door.