Gerardo is a fantastic host! He is extremely welcoming and friendly, is available if/as needed, and is very generous with his hospitality and help.
The penthouse apartment is clean, spacious, and fully equipped, and the large patio is an added plus. The neighborhood is safe and convenient to Condesa markets, restaurants, and parks, and is only a couple of blocks from the nearest metro, and to Chapultepec Park first section. This location is absolutely ideal for runners.
I highly recommend Gerardo as a host (thank you again!), and his apartment/location.