I had a great stay at Mercedes's place. The neighborhood is nice, in a quiet area near el retiro park, and well connected with the public transportation of Madrid. Mercedes was a great hostess, who made me feel right at home from day one to day seven. She is very friendly and attentative to your needs. As far as the house goes, it is very clean and has all the modern ammenities you could ask for. The ROOFTOP TERRACE is an awesome perk, and it's worth the stay just to have access to it.