Sergio was a great host! He was immediately responsive to all our requests and questions. His apartment had a excellent location, next to the Lavapies Metro station, Reina Sophia Museum, Atoche Train station, and more. We were on the 5th floor, the top floor of the building. So during the day, Sergio's loft received tons of light as there were no blocking buildings. However, his building also did not have an elevator, so frequent trips up and down the stairs with our luggage were out of the question. The apartment was clean and nicely decorated. His sofa and bed were very comfortable to sleep on. While the internet connection was slow, Sergio left his laptop in the loft for our personal use. All in all, my travel buddy and I had a very pleasant experience with Sergio and his loft.