it's a an appartement I would recommend to everyone. it's a bit off the beaten track, but very close to the centrum. Here u feel so much more u are in the "real" Mexico city, with nice cheap eateries and a Mercator very close by. The apartment is modern and clean and very nicely decorated with surprising design elements and nice art books.
Communication was smooth, and they are nice and passionate people.
The only thing that I think that can and should improve is that they cannot store your luggage when u arrive before the check in time, or have another solution for that. So if u arrive with an early flight in the city and have a lot of luggage, then u need to find yourself a solution for that.