I would highly recommend staying with Rosi for a holiday in Madrid. We found Rosi to be a warm and caring person, who was generous in her time and with advice on reasonably priced restaurants, transport and how to get the best out of your Madrid visit. Her apartment was easy to reach from the airport by metro and is only 200 meters from the metro station. It is centrally located but just out of the tourist area/a great place to relax after a day's sight seeing.
The room is at the back of the apartment away from traffic noise and you have full privacy with your own bathroom. Breakfast on the balcony was a treat. Again, highly recommended.