Carlos was arguably the most helpful, accomodating, and nice host that I've ever had the pleasure of staying with. The only negative I can come up with is that the stay was too short! The apartment is beautiful, and spacious in all the places you need it to be. The patio outside is also very quaint, and can serve as a nice place to eat when it's nice out. I would not hesitate to recommend this place to anyone I knew planning to travel to Madrid.