This is really a special gem of a place.
Maria is incredibly sweet and every aspect of her home and your stay will reflect that. The room itself is very clean and well appointed, dark and quiet at night with immediate access to the center of Madrid. I visited everywhere by foot. I cannot say anything during my stay could have been nicer - a dream Airbnb stay with an incredibly attentive host.
Thanks! Highly recommended, and there is no where else I would try to book when I come back to Madrid!