My friends and I had a pleasant stay in Patricia's apartment. The location of the apartment is great, being right in the historic centre of the city. Patricia was a great host, she replied very quickly to any question that I had. As others have noted, there are water shortages in Mexico City which means that the water is only on during set periods of the day (the timetable is on the fridge in the apartment), but Patricia has recently installed a tank in the apartment, meaning that whenever the water is off you can switch the tank on to get water. We never tried having a shower using the water from the tank but everything else worked OK, and whenever the water was on the shower worked fine. Overall, this apartment is a great place to stay while in Mexico City!