Great stay in one of the best locations in Madrid you can get, especially at that price point. Perfect as a place to crash for the night as single or coiple and walk to all of Madrid from. If you bring good walking shoes, you can literally save yourself the metro tickets. Cooking at the place is quite possible, should you prefer that over eating in one of the countless delicious restaurants nearby.
During my stay, the apartment faced a little mishap - a water leak in the bathroom - and Alberto was quick to respond and sent technicians, so thumbs up for that!