Hi! I am going to go against most people and say I love the Luau! My family's resort of choise is the Polynesian. We love the Hawaiian atmosphere and the fact that it doesn't feel like we are "in Disney"...until it's time for fireworks on the beach that is, lol.
Anyway, we tried the Spirit of Aloha Dinner Show for the first time a few years ago when my Aunt traveled with us. It was a blast. We had front row seats and were the "Hawaiian section" of the audience. My cousin also had to go up on stage and dance a silly Birthday Hula. And I don't think I even remember most of the show because we were all taking a gazillion pictures of the dancers because we were so enthralled by them. Afterwards, I joined a hula class and have been dancing ever since.
The food, I believe, is hit or miss. I am a very picky eater and really don't like meat on the bones, so ribs and chicken with bones is out for me, lol but I fill up on lots of rice, coconut bread and fresh pineapple. And they also offer other stuff for kids if they are picky eaters. But to me, the experience is about the show, not the food. I pay to see the dancers and the food is just there for me to pick at.
We enjoyed the show so much that the next year, when my grandmother went, we took her as well and she loved it too. We plan on going again next April. Last year, we skipped the show since we had seen it two years in a row but we actually missed it because it is part of the Polynesian experience to us.
My advise would be to go at least once and find out for yourself. There are so many people in this world and you will always get 50% of people who love the show and 50% who hate it. Go yourself and make your own choice; you may be pleasantly surprised.
Aloha!