Highly recommend this apartment. It's much larger than the pictures make it look, it's HUGE! Bed was unbelievably comfortable. Wifi was fast and reliable.
As someone not so familiar with the weather, I was a bit concerned about the lack of heating, but I was wrong. Turns out CDMX is the 5th most temperate climate in the world, and as long as you open the windows by day and close by night you will be fine—we weren't cold even once (although we were hot when we left the blinds open too long by day since it was so beautiful and sunny).
Only one thing—the cleaning person (fully included, and very nice), comes 2x a week for about 4 hours. While we appreciated it, we felt bad having to stay out of her way while we were working remotely, and trying to ensure she could do her job without us bothering her. I'm not sure this is a complaint though—the apartment was spotless and she was as sweet as can be. More on us than on her.
Oh, and the folks in the building couldn't have been nicer. Neighbor next door was very friendly (just from shared elevator rides), and Nico, the doorman / super was so nice. Hard to think of a time when I left the building without a big smile and a buenos dias or tardes.
Finally the location. It's very cute and residential, yet just a few blocks from plenty of things to do.
I will gladly contact Nai next time I'm in town. No hesitation whatsoever!