We stayed here for 3 weeks during the Christmas and New Year's holidays. We had an excellent experience and I would definitely recommend staying here.
The family has a small staff of people who take care of the house so the house was always very clean and beds got made on a daily basis which was way beyond expectation for me.
The house is very beautiful, unique, and pretty quirky. There is art all over the house and the third story if the house is accessed through spiral staircases. It was definitely an interesting house in the best way possible.
Francisco was very helpful on the first day and gave us a map with good tips for things to do. Beyond that we didn't see much of the family, even though they do share a portion of the house. We never felt weird or awkward with them living close with a shared entrance.
The house is probably more than 3500 square feet on a gut estimate. It's a very big house.
Again, stay here if you are in Mexico City. It's a nice location and a beautiful house.