David is a wonderful host! (Ana was out of town when we visited). Accomodating in every way! He even stored our bag for the week when the place I had reserved for this was no longer available! The apartment is very clean and cozy and the bed is quite comfortable. It is in a great location, in a safe neighborhood, and the metro can take you anywhere in the city. I would strongly recommend staying with David and Ana, and I would return there the next time I am in Madrid.