Pili's apartment in La Condesa is absolutely fantastic. The location is unbeatable and the unit itself is wonderfully outfitted and designed. Pili was about as generous of a host as they come -- she provided bottled water and kitchen items and was a wealth of knowledge about the neighborhood and Mexico City. My tip: It gets a bit cold in the apartment at night during the winter, so don't forget to pack a jacket and warm socks!
Enjoy your stay!!