First and foremost, Arianna's a very kind, five-star host and was always quick to respond to my messages.
I spent one week here, and given the high-rise location amid a busy area, it was surprisingly quiet overnight (after 11pm). I slept well in the comfortable bed.
Internet was mostly reliable, but there were a few brief outages and several slow moments during video calls.
The huge complex is dated, but it felt safe, and its park areas attract birds that are nice to hear amid such urbanity.
The problems with staying here are all out of the host's control, but worth noting. They range from minor (finding an elevator that's in service, since each one shuts down at times), to irritating (periodic construction noise from the unit directly next door between 10am-6pm), to major (having no running water much of the time during the last four days of my stay). The water issue is simply an occupational hazard of being in Mexico City, of course.