This is a great apartment in the Polanco area for CDMX visitors. The Uliv team was kind enough to let me check in an hour early and I was walking distance to all the hot spots on the main shopping drag of Polanco. The building has a 24 hour security and snacks, masks and drinks awaited us when we arrived.
The apt amenities are very well done but the walls are thin. They are doing construction in the building and the bedroom window faced the courtyard. As a result there was a bit of noise in the wee hours as you can easily hear the neighbors.
While I was grateful for the help to schedule a covid test in the apt, I was annoyed that my medical results went directly to the airbnb host and not me directly - despite specifically asking for the results to be sent to me and not to them and providing my email address for this purpose. In the US medical records are private. I am unclear of Mexico laws but imagine a potential positive result being shared with your host. This could cause difficulties as you plan your next steps. I will never know who made this error as I received conflicting information but I will always schedule my own appointments as we brave travel in this pandemic.