We stayed in the appartment for 10 nights and it felt like home:) it is well decorated, with class and good taste. It has enough to make a short and long stay very comfortable - all kitchen utensils, a big TV.
It is situated perfectly in the middle of the center, 3 minutes from the nearest metro station and 15 minutes from the airport bus stop.
The only negative sides might be the 5th floor without elevator and the fact that the sealing is very low in the bedroom, but all this is clearly visible in the add on airbnb. Also in this time of the year (when the windows and closed) the noise from Fuencarral is not a problem. In the summer it probably helps that the windows go up through the roof.
In fact the place looks much better when you see it live - and this is rare!
Elena is a really nice host, offered help and gave us necessary information on how to get to the place.
It was a great place to stay!