What a wonderful time staying at Cecilia's place! I was there 10 days and was sad to leave. She was very attentive and accomodating the entire time, but most importantly -- the apartment was perfect. I think you'd be hard-pressed to find better value in CDMX.
Favorite parts:
- FAST wifi (thank god)
- Gym in building
- Built-in water filter (MASSIVE amenity. Means you don't have to lug up water jugs to your room)
One thing to note re: sauna -- you have to request the front desk to turn it on for you each time. Not a massive deal, but the friction made it so that I didn't use it as much as I would have otherwise.
OVERALL: 10/10 -- I'd stay here again in a heartbeat!