Rosa is the perfect host one can have, she is friendly and a very talented artist. She goes out of her way to help. The place itself has everything one needs, a comfortable bedroom with own bathroom and use of the kitchen and is within walking distance to sights like the Plaza Mayor and Puerta Del Sol.
For the ones that don't like to walk, there is the Anton Martin metro station just round the corner, very convenient from where you can reach every corner of Madrid.
Rosa's place is highly recommended, and I thank her for everything.