A great location to see the best parts of Madrid. it is in a really lively area with lots of restaurants, little shops and bars. The metro is only a short walk away and so travel to and from the airport is easy. 2 of us stayed and the flat was very comfortable for the weekend.
Diana was very friendly and was always available for advice or help - she left us a heater to take the chill off the early spring evenings.
The wifi was good, bed comfortable and kitchen functional.