Silvia has a huge and gorgeous house. We didn't spend a lot of time in there as we're the explorer kind of folk, but there's so much in there: fully-stocked spacious kitchen, big and well-lit living room, nice backyard with wild blackberries. Bedrooms each come with their own bathroom/WC, and the top floor bedroom has a balcony with some pretty nice views on the surrounding neighborhood.
Transportation to the city center is decent, there's a Metrobus line 15 minutes away by foot, or one can take an Uber pretty much anywhere in the city. Since the house is located farther to the south of the city, it was a convenient “base camp” for us to climb the Ajusco mountain, which is located just to the south of Mexico City.
Small grocery store is right around the corner, as is a delicious bakery, both open late into the evening. 15 minutes away is a big street with cafes and a large supermarket.
Silvia herself is super-friendly and helpful with tons of useful tips and how-tos. On the day of our departure she has surprised us with a delicious local breakfast, which was very nice of her. Thank you, Silvia!
I'd highly recommend this place to any traveler.