First off you are in a great location. Though about a mile from the center of Coyoacan, you are still located in a lovely and convenient part of southern Mexico City. It is worth the walk down beautiful Francisco Sosa street to get there. The Miguel Angel Quevado subway stop is about a 10 minute walk from the apartment. It is located within a gated complex, complete with with a doorman. We got in without a hitch each time.
The apartment is extremely comfortable. It was as if I was going home to stay with my parents each night. Pamela and Pepe were great to engage with. Pepe has interesting stories about his career and personal life, complete with suggestions about what to see in the surrounding area that were top notch. Engage them in conversation if you have the time.
The two beds were comfortable, the bathroom was clean and the shower was hot. What more could you want? Stay here if you are in Coyoacan.