I would recommend Olga's apartment to anyone planning a vacation in Madrid! The location is wonderful, literally opposite the Opera House (Opera metro faces the theatre), 2 mins. from the Royal Palace and Cathedral, and the beautiful labyrinth of Old Madrid.
The apartment itself is very comfortable, with a large sitting room and comfy sofas, which is full of Olga's many books and personality.
The bedroom is very peaceful and quiet despite being so central, and the airconditioning keeps you cool on a warm Madrid evening!
A superb, secure warm place from which to experience the beauty of this wonderful city!