Jaime may have been the most communicative host I've ever had with AirBnB. Everything about this booking was seamless: keys were ready even though we arrived late at night; an extra bed in the living room was ready for us; toiletries, coffee, and cookies were laid out.

General notes:
(1) The neighborhood is quite progressive. There's a fabulous coffee shop around the corner and a supermarket two blocks away. It's located within walking distance of Obregon, one of the hippest streets in all of Mexico City. Once or twice the (young) neighbors downstairs played loud music, but it wasn't anything that bothered us.
(2) The apartment is even better than the pictures. Jaime has updated the bathroom with tile and updated the kitchen with more shelving and a smaller stove. It's a compact apartment, but we weren't lacking any amenities.