Marta is a great host. She responds quickly and has great suggestions for CDMX.
The apartment is just a couple blocks from the palacio de bellas artes-- walking distance to many sites and places to eat and shop. You can also order an Uber very easily to get to places further away.
The view from the roof top is amazing and gives you an idea of the city's layout. You will be in the centro so lots of happenings always going on around the apartment.