This was one of the best experiences I've had in Airbnb so far. First of all, Marta is a truly wonderful host. She was always easy to reach, friendly and kind. She also had no problem at all being flexible when it came to check-in and check-out times, as my flight schedule got turned upside down by the airline.
The apartment is located in a really nice area of Villa Urquiza, with plenty of shopping and going out options nearby. There's also lots of public transit options around, including buses, subway & train. Despite being in the middle of a densely populated area, you hear no traffic noise at all in the flat, thanks to the fact that it's on a side street.
The space was spotlessly clean (maybe even the cleanest one I've stayed in) and well equipped, with everything you might need, whether it's just a few days or a long term stay. It's also very tastefully decorated, so you will feel right at home!