Paco and Maria are gracious hosts and do everything they can to make your stay in their beautiful, art-filled house welcoming and comfortable, including, as others have mentioned, providing a cell phone for your use. Yolanda, the wonderful "ama de casa," is there from morning to night making sure that you have a good breakfast, fresh towels, clean laundry, a ready supply of bottled water and just about anything else you may want or need. With a Metro station a 10 minute walk from the house, you can get to just about every part of DF in an easy, safe, efficient and economical way. After 3 weeks, I felt like a Chilanga and that Cortina 9 was my home.
I hope it won't be too long before I have the chance to return.