MaryJo was not in Mexico City, but her mother met me at the apartment and showed me everything in it and also the neighborhood. She is a wonderful woman. The apartment itself is charming and its description on airbnb is accurate. The kitchen is spacious and has everything. The Internet was sometimes weak (I kept losing the signal on my phone), but other than this everything was great.
The neighborhood is also amazing. The apartment is very close to the metro and to the metrobus, and there's a market close by and many shops. There's also a supermarket to which you can walk, but from which you'll need to take a taxi back to the apartment if you have bought many groceries (there are taxis right outside the supermarket and the taxi costs about 20 pesos).
Overall the experience was wonderful.