I've spent slightly more than a month in this room. Here are some pros and cons:
Pros: The neighborhood is safe (Polanco) and a lot of restaurants are within walking distance. Eduardo is pretty easy to communicate with. The two guards are super nice and helpful. The room is fully equipped with everything you need. The price is affordable in Polanco.
Cons: The water flow in the bathroom is very weak if you'd like to take a hot shower. The surface of the chair is falling off into pieces and chips. Do not recommend using the oven which is very hard to control.
Overall, still recommend staying here if you're planning to visit Mexico City :)