The apartment is really great! We enjoyed it a lot. It had everything we needed. The place of the apartment is in the center. The location is convenient to arrive from the airport with the "renfe" train, to "piramides" station. Marta, the host was really nice and helpful. She answered all our questions and provided us with useful maps.
Note: the apartment is on the third level with good amount of stairs to climb (the elevator is currently under construction).
We had a great time in this apartment in Madrid.