I had an incredible time in Madrid. Mariano is an excellent host--friendly, responsive, and accommodating. The interior of his apartment is exceptionally beautiful, and it is located conveniently near the museums, Atocha, Sol, Plaza Mayor, and great little bars and restaurants in La Latina. I didn't need to use the Metro until the last day to go to the airport. I would definitely hope to stay here again next time in Madrid. Gracias para todo, Mariano!