We spent 8 nights at Pura's place and it was truly delightful.
First of all, it looks exactly like the pictures, comfortable rooms, 2 balconies overlooking the road outside.
The neighborhood is delightful, it felt very local and yet you could easily walk to the tourist sites, the Palace, Opera House, the Mercado, shopping on the Grand Via, Plaza Mayor etc. So much to do and to enjoy. Madrid is a favorite city for us.
Pura was timely in communication and very pleasant to speak with. I would recommend her and her apartment.