Norma's place is terrific, clean, quiet (for Ciudad de México), and conveniently located in a beautiful neighborhood with easy access to all parts of the city.
She provided water bottles and was very accommodating and welcoming; she was understanding of our inability to speak Spanish very well (though we are taking classes to learn).
The front door of the private unit faces a courtyard shared with other units; it's very beautiful and has good vibes.
I would definitely stay here again, but for longer next time.