I came to Madrid for a few days to do work in the Biblioteca Nacional and the Archivo Historico Nacional. The apartment could not have been located in a more convenient place for both. The neighbourhood is upscale and safe, with numerous amenities and services and markets and shops. The building, apartment, kitchen, bathroom and the room itself were all very clean; Roberto is a delightful, flexible, helpful and punctual host. I will definitely consider staying here for my next trip to Madrid.