Personally, I really like their veggie pizza. Always get that with the small salad and rice krispy treat. Maybe because I get the veggie, rather than cheese or pepperoni which is ordered by most, but mine has always been fresh from the oven. They don't have them sitting around ready and waiting to be ordered, but bake them after ordered in my experience. I also really enjoy the Caprese salad. Convenient to take back to your resort room, if you leave around late afternoon, before they close.
It does get very hectic and loud inside. I always eat outside, close to the building and eaves, so in out of the every-afternoon-rain. I also go off hours, so not so bad. When any place has lines 20-30 deep, I always just wait until later to eat. I'm never going to pass out from hunger, but sometimes others get really crabby & think they HAVE TO EAT NOW OR WILL DIE!
I agree it doesn't much resemble the Pizza Planet from the movie, but as others have stated, there is some Toy Story theming and the arcade, etc.
Try to go when less crowded, so your kids can see more and enjoy more.