William is a good host and very obliging. He is a friendly guy and the communication is guite well - also in English.
The location of the apartment in the city is good, you have shops, pharmacy and bank in the near. Furthermore you have a metro station in the near and it is close to attraction to Mexico City. The only thing is, that the bathroom is not exclusive for the guest.
I enjoyed the stay and for short trips it is a really good place to stay.