My girlfriend and I spent 3 nights in Fernando's place and we had the most wonderful stay!
The apartment is exactly as shown in the photos and also really quiet, tidy and clean. There is also an available WiFi connection, although it was not included in the description. We loved it - and most of all we loved its location; it is situated in the most cool, alternative and vibrant part of the city, the famous Malasana! Plus, it is extremely close to the Tribunal metro station.
Keep in mind therefore that you won't get much of a sunlight, as the appartment itself is pretty dark, but that didn't affect us.
As for the communication with Fernando and his associate, it was beyond satisfying.
Highly recommend it!