My girls loved it last fall! They were 8 and almost-3 at the time. The backstory they give you during your meal is pretty slow, but once the real action starts, it's as good as the luau shows I've seen in Hawaii, etc. My kids especially loved the fire dancers.
Our food was good, too. Not spectacular, but good. I've read reviews where the chicken was dry, but ours wasn't.
dh and I thought it was an enjoyable night, and like I said, the kids absolutely loved it. Don't go in expecting too much, and you won't be disappointed.
Oh, and make your ressies asap, as the date you do so will determine your table location. We made ours about 4 months in advance, and we were in the very first row of tables. I'm sure it's a whole different show up there, versus the very back tables.