My first time using Airbnb... Did not actually met Elena. Kept in touch via Airbnb, but she was very accommodating and very responsive to messages. Her friend Roberto gave us keys. Coming and going from the residence and even using the gym/pool was a bit inconvenience because guards have to open the door for you and they don't speak English, but it's okay--it's Mexico, after all. Never figured out how to use the keypad, but that's alright too. Elena's condo was fully stocked with everything you could possibly need from towels to a first aid kit. She has also a binder with helpful information: rules, wifi password, public transportation info, and sights and best taquerias around the area--very impressive. Never got to use the gym, but the pool was wonderful (it's heated!) Other advantages: Elena's condo is right next to a 14 peso taco restaurant that is open 24 hrs, 6 days a week and next to the Bosque de Chapultepec which is basically a huge park with a million things to do (6 museums, zoo, botanical garden, castle, really cool/unique Starbucks, rows and rows of souvenir/food vendors, etc.) Would recommend to anyone.