We do this everytime we go to that park. The best value is Hollywood and Vine it is a GREAT buffet with lots of really good food and dessert choices. I am a Gastric Bypass Patient so I have to be careful and I have no trouble there even the pickiest eater will be happy.
You book your package, arrive on time, they seat you and give you your passes to get in the side entrance for Fantasmic. Make sure you hold on to those passes someone will collect them as you enter the side of the stadium if you don't have them they can't let you in.
Also once you are in there is a cast member that keeps other people from coming to sit in that area before the show starts so if you are leaving and re-entering that area they will give you a password to tell them when you come back in.
I definately recommend that you go and see it again. They have updated the show, cut out some things, changed to brighter wardrobes. Also I heard they are getting ready to cut this show back to only 2 times a week so I would see it while you can.