This is my second trip to Mexico City, staying in Casa De Aire. It's a lovely space, tucked away but very near el angel and reforma, the main buzz of the city. The apartment is safe and always well-attended by the staff who work there. The building is currently working on building out another floor, so expect noise in the morning. Given that this is a noisy part of the city, that did not come as a surprise to me. The black out curtains help keep a tranquil vibe, too.