There were five of us staying in Scott's apartment for three nights, and two of us stayed longer, for a total of 5 nights. The best thing about this apartment is the location - walking distance from so many of the things you want to see in Mexico City, including good food, museums, parks, and historical sites. The apartment was clean, easy to get to, and checking in and out with Gloria was very easy. The wifi was fast and reliable, though a bit weak in the back bedroom. The fresh water jugs provided were a huge help, and there was very hot water available in the shower. Though we didn't use it much, the kitchen appears well stocked. The neighborhood felt safe, and the building itself had good security with multiple locked doors.
Just a few things worth noting to ensure this apartment is right for you. One of the double beds is off the main sitting area without a door, and lacks privacy. (The other double bed and the room with two twin beds are private.) There are ample places to sit, but mostly rather hard chairs. Also, the apartment was not very quiet. There was construction during the day (which, I assume, is not a permanent issue) and noise from the street, especially from the front room. There was also quite a bit of noise from other apartments quite late on the weekend.
If you are OK with the above, I recommend this apartment for its amazing location, price/value, cleanliness, safety, and easy interactions with the both Scott and Gloria.