Agustin's apartment is in a good location in Hipodromo/Condesa. It is a basement unit, however there is quite a bit of light that comes into an atrium. I didn't hear much street noise at night... the bedroom is at the back of the unit. The bed and sheets were comfortable and the unit was cleaned mid-week with a nine night stay. The wifi was reliable with just a bit of intermittent connection.
The neighbors are renovating the unit above this apartment and this causes significant and constant grinding noise during the day which was heard throughout the apartment.
This part of the review does not reflect on Augustin's apartment directly, rather on the safety in CDMX, in general. During this stay I was accosted by two policemen two blocks from the apartment in Parque Mexico (one on foot, another in a police car). They took all my cash. I have traveled to CDMX many times in recent years and this is the first time I have had this kind of problem. Travelers, especially foreigners, should take precautions including asking any police who approach them for identification, taking photos of the police and ID and immediately sending these to friends. Don't hesitate to attract as much attention as possible and ask locals for help.