There have been so many great reviews Mariví Y Roberto's place I'll just add ours to the list. This perfectly appointed space is very centrally located in the city. The apartment is situated in a
lively area within close walking distance to shopping, sightseeing, and some of the best food we tasted on our trip (Best tacos in the city are within 100 feet from the front door).
We had read another review that made a comment about the security of the apartment. I can say that I never felt unsafe walking around the neighborhood, even after dark. Having a doorman adds another layer of comfort that was a nice touch. And it makes you feel pretty fancy to boot.
All in all this is a perfect space for your trip to Mexico City. The nights on the balcony watching the sunset over this beautiful city were some of the most memorable of our trip!