I highly recommend staying at Kristian's apartment while taking a trip to Madrid. I found this apartment for myself and 3 of my friends and they were all so impressed with my choice. Kristian was kind and incredibly helpful. The apartment was clean and very comfortable. I think the best thing about the apartment is the location. We could walk everywhere that we needed to go. We walked to Plaza Mayor, El Parque de Retiro, Puerta del Sol and El Mercado de San Miguel. Highly recommend this one!