Short story: the Chief (your host) and the show are great; the food is terrible.
Chief Sielu is your host for the night. In addition to being a true Samoan chief, he is an actor and comedian. It shows. He's very, very funny. And the show he leads you through is not only entertaining, but gives you a little bit of cultural insight into life in the South Pacific, including how they make fire (just like on Survivor, but in front of your eyes and incredibly fast!), how they make baskets, etc. The fire dancing part of the show is fairly amazing.
Don't go for the food. The salad is the kind you get in the school cafeteria, the chicken was overcooked, the fish undercooked, and nothing seasoned very well. In a land with so much good food and flavor, this was a real disappointment.
There are also better locations. The venue has been built out for this luau and is OK once you get into it, but it's literally inside a Wet & Wild Theme Park, which is a bit cheesy and plays even more to the commercial nature of this than is already there. The only other luau I've been to was in a beautiful setting, right off the beach, with palm trees and the ocean right behind. This was not that.