We are so happy with our stay in Bianca's home in Polanco, CDMX. The location was in the center of downtown Polanco, in a beautiful apartment above the restaurants and shops. I have never stayed in a downtown area like that, but it was really great for our family (five adults). The area feels very safe, and it is completely walkable. There are lovely parks all throughout the neighborhood, and a large forest is a mile away (easily walkable) with a zoo, a lake, and an amazing museum of anthropology. The neighborhood also has an outdoor theater where we attended a symphony. Every restaurant we tried in the neighborhood was delicious. It was easy to get an uber driver right outside the apartment (for example to go to Teotihuacan), and it was only a few minutes of walking to get to the double-decker Touribus stop (a great way to explore Mexico City and go to the Zocalo).
The apartment itself is very comfortable and beautiful. It is very helpful to have a kitchen to prepare some meals at home, and there is a big table for family meals. We slept well, even with a late-night crowd in the street below -- the apartment is quiet and has blackout curtains. You can even sit out on the balcony which overlooks the street. The main living area has a comfortable seating area and huge windows floor-to-ceiling. It hardly feels like an apartment when there is so much natural light, and the room is full of beautiful plants.
The best part of the apartment was our host Bianca and her husband Zeke. They were so kind and willing to help or advise in any way. They welcomed us, helped us figure out how to do our laundry in the building, gave us wonderful recommendations, and even found a guitar that our daughter could use during our stay - greatly enhancing our Christmas celebration. We are already hoping to go back!