I stayed at Javier's apartment for a week, it's in a perfect location, you can walk everywhere, and enjoy what Madrid has to offer you.
The place is comfortable and impecable, It has all the amenities and facilities that one can need, although there is a bit of noise from the street, but if it doesn't bother you, then it´s absolutely fine.
The communication with Javier was smooth and easy.
Thanks for everything!