This is a really, really great place to stay in CDMX. My husband and I stayed for a week while visiting CDMX, and I honestly don't think the pictures do it justice. It is light and airy with big windows, and because you have the private patio, the space almost feels double the size. The kitchen is spacious and usable, and the location is absolutely amazing - you are really right smack in the middle of Roma Norte, and within walking distance to endless amounts of restaurants, coffee shops, stores etc.
A couple of little things: we found it hard to sleep because it was pretty hot and there's no AC / screens in windows (to keep out bugs) - Setsuko was amazing though and did bring us a fan to use when we asked. The shower was also a little temperamental, but we got used to it after a few days. Finally, as noted in the description, this is a walk-up, so just be ready if you have heavy luggage.
Overall, we really enjoyed our stay and thought it was a great home base while exploring the area.