Maria is indeed a super host. She's very friendly and it was always very easy to communicate with her. When I needed anything she was one phone call away.
The place is clean and quiet and the location is central, walking distance from every attraction.
Overall my stay was great! Maria even put me in contact with a friend of hers who got me into one of the greatest flamenco places I've ever been to.
I will definitely stay at her place again.