I stayed at Alex's apartment at the end of my trip in Madrid, and it was the perfect ending to a wonderful vacation. Alex was in Thailand, but he was in contact with me via email, and was so prompt at responding to my emails...which was much appreciated! His father, Derek, met me on the day that I checked in. He was so polite, and showed me around the apartment, answering any questions that I had. The apartment itself is very spacious! You feel like you are right at home in Madrid. The location can't be beat, either! I am a big fan of Retiro Park, and it is a hop, skip, and a jump from the apartment. Plus, you're right across the street from the Prado Museum. I would definitely recommend Alex's apartment, and I hope to come back and visit!