I'll split this review into three sections:
Neighborhood—Molino del Rey is such a hidden gem. Fantastic location adjacent to Lomas, Chapultepec and very near to Polanco. Quick ride over to Condesa or Cuauhtemoc. CDMX can feel extremely overwhelming but the house is located on a quiet, private street adjacent to a walking/bike path that provides plenty of access to the green spaces of Chapultepec. The main drag (Pedregal) has a quaint array of restaurants, cafes and shops. The locals were kind and helpful (check out Peter at the barbershop and Antonio at the poke spot)—there is a local market at your doorstep on Monday mornings. It feels like a small town—I even ran into the host when I was getting coffee!
The House—I am an architecture buff and the house reminded me of the Mid-Century Case Study houses. I love indoor/outdoor living and although I didn't spend as much time as I would have liked in the outdoor living room, it is so great to have. Likewise, I didn't use the study, but can't describe how valuable this would be for a long term work from home stay. The kitchen is modest but incredibly functional and well appointed with plates, pots/pans, seasonings, as well as coffee/kettle. There is a narrow winding staircase to get from first to second level. Likewise, the main living area has many levels—beware accident prone and clumsy people.
Host—There are too many great things to say about Ignacio. He is communicative, responsive and ultimately—a truly nice guy. He accommodated my late arrival and when I mentioned I was enjoying tea and honey, he had some in the kitchen waiting. After a surprisingly warm day, Ignacio brought over a fan. He also scheduled an eye appointment (Optica Arista in Polanco—great experience) for me when I asked for a recommendation—truly above and beyond what is expected as a host.
I plan on staying at Ignacio's house for all of my future CDMX trips, but my only caution in writing such a thorough and exemplary review is that it won't be available.