We had a great time at Lis's place. It is located in a super safe area of the city and It is exactly as described on the photographs.
The location is great, within walking distance from everything you might need: From bars & restaurants, to parks & historic sites, or even hostpitals & pharmacies. Lis and Evan, her husband, are super friendly and communication was never an issue.
For those who follow the news and have their qualms about the earthquakes in Mexico City, we actually experienced one large earthquake during our stay and Lis's room is located near one of the city speakers than sound the earthquake alarm - which gives you enough time to get to the street - and the building is very well constructed and did not suffer any damage whatsoever.