While the apartment was thoughtfully designed & the hosts were accommodating with my arrival time, I can not recommend this apartment as a place to fully enjoy Mexico City and the Coyoacan neighborhood.
To begin with, this is not an 'Entire Apartment' it is a guest quarters on the roof of their house, with extremely thin walls that assured I could hear the barking dogs, downstairs neighbors and nearby construction projects all day. And since you were within their property, this means you have to leave through their private yard/gate and deal with their dogs who have free rein in their yard and aggressively bark at you and sometimes come up to you while barking which can feel threatening at times. One of the three dogs was nice though.
The apartment was also not set up for a full nights sleep with no fan or air circulation and if you open the windows you are inviting endless streams of mosquitos, as there are no screens to block them.
Amazing and safe location.