Sergio was very nice and helpful! His apartment is on the 4th floor, and it is quite a hike. This was the only negative thing about the apartment. We thought it was plenty spacious for three people, and seemed to be very safe. The apartment was low on bath tissue and Sergio went and bought some and delivered it to the apartment! We never expected him to go out of his way to do that; we really appreciated it. He also gave us GREAT recommendations on food, museums and flamenco shows. I would gladly stay here again! We had a Wonderful time in Madrid thanks to Sergio's hospitality.