The apartment was excellent as pictured. Modern and clean with the basic amenities for a longer stay (I stayed for 1 month). It is also centrally located so public transport and attractions (Revolution Monument, Bellas Artes to name a few) are nearby. As a solo traveller I felt safe in the apartment and neighbourhood during the day and night. If you're a light sleeper (like myself) and not accustomed to city noise, I would recommend walking with ear plugs as the bedroom windows opens up to the street.
As for the host, María was excellent and very accommodating. She definitely has earned that title "Super Host". I would recommend a stay at any apt hosted by María in CDMX.