The location is excellent if you want to stay in "Centro Historico."
It is one block away from "Templo Mayor" and 2 Blocks away from "El Zocalo." The place was clean, and it is secure; there are cameras and a 24-hour concierge. There is also a nice deck/patio/balcony where you can enjoy the sounds of the city while working or just having a drink. Olga is a great host and was always available. I will definitely stay here again if in Mexico City.