We thoroughly enjoyed our stay at Villa Conchita. Hector Jr. was waiting at the airport when we arrived on a late flight and his fee was very reasonable. The location couldn't have been better as we wanted to see Frida Kahlo's 'Casa Azul' . Cayoacan is a safe and beautiful part if Mexico City. It was easy to use the metro to get to the Archeological Museum. Minerva and her husband Hector Sr. were attentive hosts and their son Hector's English is helpful not to mention his knowledge of Mexican history. Lots of good restaurants nearby.
Highly recommended!