We had a pleasant stay in Mario's apartment. It was quiet for sleeping even with the holiday weekend. It is located just outside the main part of Condesa and is an easy walk to many restaurants and bars. The location likely attributes to the quietness which was nice.
The apartment is comfortable for two people although the bathroom is quite small. We enjoyed our stay however there are a few items that could improve the experience. I've shared these with Mario and hope he addresses them.
One key issue is there was no drinking water provided, which was inconvenient as we arrived late after flight delays and had to go out to get water. That said, for the price and location I think this is a nice place to stay and would recommend it. Access to the apartment was easy and communication from the hosts was good.