We had a wonderful stay at Sergio's. The Airbnb was very clean and the location was fantastic. We were able to walk between Chapultepec parque, parque de Mexico, and parque de España each day. There are endless fantastic places to eat and the neighborhood is quiet yet there are plenty of opportunities for entertainment. Check-in is very simple and stress free. Martha was there when we arrived to answer all of our questions. She is also incredibly responsive via text message if you have questions after check-in. The front desk men are very nice and friendly and will help you with anything you need. We highly recommend Sergio's Airbnb to anyone traveling to Mexico City.