Flavia and Mauricio's place is wonderful! The apartment is very modern and it has a fan and heater as well. It is very centrally located. I felt quite safe in the historic center. The front door men were very kind and helpful to us. The only con I would say is that the walls are thin so you can often hear some noise/voices from the other apartments or outside-- but CDMX is within the top 10 largest cities in the world so it makes sense that you would always be hearing people. :) Overall, it was a wonderful stay and incredible city to visit!