Cynthia was very kind to take me in the same day I got to Mexico after having a bad room experience elsewhere. She was able to have the room ready in an hour and when I arrived she took me on a quick walk around the area and also provided fruit for my room.
Cynthia's apartment is small and simple but modern and very beautiful. Everything you need to feel comfortable. The complex is guarded and has security guards 24/7 to let you in and also has cleaners cleaning the apartments and outer areas daily. Everyone was very nice from the guards to the neighbors. Cynthia is very clean and also has a service clean her apartment so you will never have to worry about cleanliness. The neighborhood is safe and has tons of small stores and restaurants around. There is also a supermarket around the corner for if you ever need anything. Most of the monuments you'll want to see are in walking distance and some of the farther places cost about $2-$3 USD in über.
My only cons is that the apartments are VERY close together. You can hear every little thing beside and above you. There is no AC so you have to open the windows to get air and there's screaming babies and loud music at all hours of the day and night. This is important if you're a light sleeper or want more peace. Also, the bathroom sink drain was painfully slow. After a while I just started washing my face and teeth in the shower.
Other than that I would highly recommend Cynthia's apartment especially if you're looking for a safe yet central area to explore!