Yes, we saw it on the Freedom in June. It was OUTSTANDING! Carnival's production shop really outdid themselves on it. The costumes and the props were unbelievable. I normally am bored stiff in the shows and only go because the wife enjoys them but I was entertained. They also did a salute to the Beatles, I can't remember the name of the show but it was just as good.
I can't tell you if it was a good representation of N.O. as I have never been there, but it definitely hit on the stereo types of N.O. as I know them
Carnival Cruise Lines:
Fantasy 90, Celebration 95, Victory 05, Conquest 05, Spirit 6/06, Freedom 6/08, Holiday 7/08, Victory 6/09, Valor 9/09, Dream 6/10, Splendor 8/10,Conquest 8/11,Magic 11/11,Triumph 4/12,Spirit 7/12,Freedom 11/12, Triumph 2/13 - The fire cruise
NCL Dream October 2006, RCCL Mariner OTS June 2007