I loved my stayed with Jose & Violeta (and Gaia the cat)! They are wonderful people with big hearts. I stayed there for a full month and always felt super comfortable in their house both in my room and in the shared spaces (I used the kitchen on a daily basis, I worked in the living room from time to time or sat in the patio). I felt sick twice and in both cases Pepe & Violeta were very helpful and caring.
The location is unbeatable. Truly unbeatable. You're in the heart of La Condesa (aka parque Mexico) and on Amsterdam! Amsterdam (a loop street) has a nice central walkway that many people use to jog or walk (and the path conveniently has a circumference of 2km, you're welcome). I loved living on Amsterdam, it has a lot of nice cafes and restaurants and it's very green.
The place is very quiet (a rare thing for Mexico) and you'll definitely feel safe, the building is gated with a steel gate and on top of it, the apartment is on the inner side of the building. The kitchen is well equipped with most things you will need (but there's not a lot of counter space. But who wants to cook in CDMX anyways?)
The living room is nice and welcoming.
Also, the place gets cleaned twice a week so it's pretty much impeccable.
The room is great and as advertised. However, if you're staying long-term I found it lacked a bit in terms of storage, especially for non-clothing items like books, passports, computers or whatever other item you bring with you that does not belong in a wardrobe.
Another thing to note is that there is another bedroom that is listed on Airbnb. On the positive side, you will get to meet a lot of wonderful people (go out for tacos and mezcal), on the downside if you're staying long term, bear in mind that this could mean that your flatmates might have a different lifestyle from you (I was working during weekdays. Being a (very) light sleeper, I would sometimes be woken up early in the morning when someone was catching their plane or late at night if people came back late). Nevertheless, all guests were respectful and nice.
All in all I really enjoyed my stay there and would definitely recommend. I think with a tiny bit more furniture the room would truly be a gem.