Honest to God, this is one of the best Airbnb rentals I've ever stayed in. The place is immaculate, cool, spacious and well adorned. Pedro and Celia are phenomenal hosts - we dined for two days (for every meal) based on Pedro's extensive restaurant recommendations, and they were uniformly great. Pedro also has recommendations for, well, pretty much everything you would need in CDMX, and they're all extensively mapped out for you. Above and beyond, truly.
You want to stay here, I assure you. Roma Sur is a beautiful and relaxing respite away from the hustle and bustle of CDMX. This street in particular is leafy and family-friendly (and quiet!) - not to mention a short walk away from Condesa and just an endless array of fantastic restaurants and bars and coffee shops. I think I might recommend this place to my mother, no joke.