Marcos and Sergio's place was fantastic! Clean, convenient, and QUIET. It is located within 5 -10 min walk to two metro stations and within walking distance (20-30 mins) to most of the sightseeing. The apartment is located in a plaza, but it faces the quiet courtyard and not the noisy plaza. We found it to be a bonus to live amongst the locals as you will see kids playing in the plaza. It was incredibly quiet inside the apartment. We read in some of the reviews that the guests had an issue with "the bright bathroom light." We did not find this to be a problem. The bed was also very comfortable. This apartment has everything you will need for a pleasant stay and I would recommend it to anyone visiting Madrid.