This is a small but perfectly formed apartment. We particularly liked (i) being able to collect the keys at the airport; (ii) the central location (a 5-10 minute walk to the Plaza Mayor); (iii) the quietness (you couldn't hear any sound from the street); (iv) the shower; (v) the well equipped kitchen and (iv) the outside terrace for our exclusive use. The bed is on the firm side, which will suit some better than others.
Natalia managed our booking and stay very efficiently. She was available via the airbnb portal and by 'phone if we had any queries and was good enough to check with us that everything was OK once we'd arrived.