The apartment is very convinently located in the center of Madrid and close to public transportation.
A small express supermarket is literally next door.
The apartment is very clean, good beddding and linens. Luisa is very easy to communicate with and she is very responsive.
The apartment is located on the 3d floor (2nd by European numeration system) on a lovely street.
I definitely recommend it for staying in Madrid, especially for young people.