This was by far the worst AirBnb I have ever stayed in. We (a group of 4 friends) did not have any problems with communication, access, or the host but the apartment just did not live up to the photos and description provided. It was moderately cheap and given the price we were not expecting an Airbnb without some problems. That said, the photos convey a clean well-lit space that looks inviting and comfortable - unfortunately what we were expecting did not reflect the reality of the space.
A couple of notes and observations: Overall the space was not well cleaned and instead felt quite run-down and grimy. The walls are quite thin and there is an open window between the bathroom and one of the bedrooms. This means you can hear every single sound coming from the bathroom and there is no privacy for those using the lavatory. The wifi was slow, often fluctuating around 5-10mb/s. The beds are quite firm and although roomy, may be hard to sleep on unless you are used to a hard mattress. Ants were prolific in both the bathroom and kitchen. In spite of these disadvantages, there were a couple positives. The breeze from the windows was wonderful and provided natural cooling for both bedrooms. We did not find noise to be a huge problem (although there is some noise from cars passing on the street and the occasional neighbor or dog). The apartment is undoubtedly located in a great spot (close to the Cineteca Nacional, Viveros park, Khalo and Trotsky museums, and the heart of Coyoacan). If you are traveling on a budget and prioritize location and cost over comfort and aesthetics this may be a good option for you. If you are looking for other qualities in a Coyoacan AirBnb you may, like us, end up having a very disappointing stay.