My wife and daughter attended this luau with the free tickets we got as part of our 7th night free with luau package we booked with the Hilton.
On Friday nights they do a small show by the pool and then shoot off fireworks. These are many of the same performers you see in the luau. After watching that, I knew that I personally didnt want to spend another $200 to get two more tickets and my other daughter and decided two of us would just grab a nice dinner out somewhere.
I ended up eating at Kobe Japanese steakhouse which was excellent and didn't cost nearly as much as two more luau tickets would.
My wife said they took forever to seat you (they had to stop and take pictures of you to try to sell later), that the food was just average and the show was just ok too. She said several guests actually left early from the luau. She said if we had spent $400 for four tickets that I would have been let down big time.
Finally, if you have a room facing the parking garage like we did in the tapa tower, you can watch the show free from your balcony.