The apartment is exactly as it appears in the photographs. Mariana is a generous & responsive host. The building is a rock-solid, four-story edifice, busy & buzzy with the 22 apartments inside of it and all the street happenings outside -- kids, dogs, deliveries, buses -- puro México. Everything quiets down around midnight, I think (I never travel without earplugs).
I swear they wrote The Princess and The Pea about me, and I slept well in the very comfortable bed. The hot water is hot & the apartment might have the only bathtub in Mexico City.
The kitchen works well, with the clothes washer tucked under the counter. The washer also features a dry-cleaning function of sorts which I found incredibly useful for staying out of D.F.'s remarkably slow dry cleaners.
There isn't any "live teevee" service, if that matters to you. There is a regular hi-fi with an aux-in port & the cable for you to use, too.
The metro station is close but there are plenty of things to walk to -- bakeries, coffee shops, sushi spots, rotissierie takeout, bookstores, juice bars, real bars, two theatre venues -- without even crossing any major arteries. It is close to everything, and then it is still super-easy to get wherever else. When you return to the apartment, it is easy to rest & relax with all the comforts you need.