Mariano’s apartment is very clean and is a great place to base out of in Madrid. The metro is just a block away, but we rarely used it since everything was walkable from this location. We visited in the heat of the summer so the apartment was hot at times as you are not allowed to run the air conditioning past 23:30, but there is a fan in the room to keep you cool at night. We enjoyed our stay with Mariano and would recommend staying with him!