The apartment is about a 1-2 minute walk from Plaza Mayor. Spectacular location. This place is really clean. So clean that the host redefined cleanliness! There are also many brochures and pamphlets in the house.
In the neighborhood, you'll find many great tapa places and convenient access to public transportation, but one can pretty much walk anywhere. The flights of stairs is good exercise and doesn't bother me, but if you're not in best of shape...it might be cumbersome.
I would definitely stay here again :-)