Having lived in New Orleans for over 6 years, I knew exactly what kind neighborhood to look for during a visit for a friend's wedding. My wife and I arrived from out of town, but the provided key did not open the unit. We made multiple attempts to contact the host, which were unsuccessful. Later, we would learn the host was out of the country (a fact that he could have shared with us in advance, or at least provided a backup contact person).
AirBnB provided a refund, but that didn't prevent us from having to travel all over town in search of other accommodations and nearly miss the wedding. The location is fantastic and the unit looked nice (at least from the outside), but I would recommend looking elsewhere for housing.