First, I'd like to comment on the location. The apartment is right in La Condesa, which is perhaps the most fun, young, hip, and safe part of Mexico City. It is close to the park, restaurants, amazing food stalls, and great bars.
Second, the apartment is incredible. It is full of light and on a modern building with keyless locks, an elevator, and a doorman. The bedroom is spacious, the wifi is superb, and the common spaces are quite nicely decorated. The pictures are accurate, but the apartment is better than they convey. Abril and Rodrigo do not live there when guests are staying; they live nearby and frequently check in. They rent out two bedrooms total within the apartment.
Last, but not least, Abril and Rodrigo are fantastic. They treat each guest like old friends. They kindly made me dinner one night on their rooftop grill and treated me out to a night on the town alongside some of their friends. They offered local tips and directions. Communication was easy, and their kind, custom service really puts this Airbnb above others. With this room, you aren't simply getting an extremely clean, spacious, modern apartment, but rather a unique, friendly, gracious welcome to Mexico City as Abril and Rodrigo know it; they are happy to share it with you!