Four of us (two couples in our 60s) really enjoyed our stay at Paco and Maria's great house. We each had a nice bedroom on the second floor with comfy bed and soft sheets. We shared a new bathroom with strong shower with plenty of hot water. We loved all the art on the walls and the spacious open feel of the house. Enjoyed the little sitting room outside our bedrooms and also the small open courtyard.
Continental breakfast laid out each morning was perfect for our needs:
coffee, juice, cereal, yoghurt, toast, and fruit.

Paco gave us great directions for taxi drivers to the house (including a few very useful sentences in Spanish). He met us at the house and gave us a very helpful orientation to the neighborhood - recommended restaurants within walking distance, a Mexico City map, and a cell phone with minutes with his number and taxi driver numbers programmed in. All extremely helpful. In addition, in earlier email contacts with him, he had recommended a special concert at UNAM that we might enjoy and bought tickets for us.
It was an excellent concert and a nice opportunity for us to see the UNAM campus and its wonderful concert hall. The two cute dogs are an added bonus for dog lovers - they are friendly, laid back, and very well behaved. The neighborhood was quiet, and we felt safe walking back and forth. Since we were four, we took taxis almost everywhere - other than walking over to Chapultepec Park. It was quite easy to hail a taxi on the main street half a block from the house.