we went with our homeschool group the first week of december and had a blast!! We did this last year too.
the rooms were spotless, the staff were so friendly!
we didn't want to come home! no sign of bed bugs. Remember, they can show up in absolutely ANY hotel, at ANY time.
What I did to be extra protective was pack in rubbermaid type clear plastic boxes w/ the snapping lids. It was honestly very easy. I had also researched a bit, and apparently bed bugs like to hid in the battery compartments of any electronics (it's warm in there). So I left everything home except my cell phone and camera, and they were always in a plastic tub when I wasn't using them. (so no laptops sitting around the room, I-touches, ds's, etc). Not that we need any entertainment while there anyway.
our group plans on going every year (it's only an hour from us). I'd like to go back w/ my husband and kids alone once again this winter for a couple of days.
i think your age kids will have a blast. they have a lot for the little ones. don't forget about the craft room you can go to anytime and make a craft w/ your child for a small fee. and wearing pj's to the lobby at night for the 'show'... the ice cream/candy/fudge store, starbucks, pizza hut, the restaurant, the arcade, the build-a-car race track, the gift shop, the spa, and the little girls spa... ahhhh, we love it there!
give it a try - I don't think you'll be disappointed. Just remember to really shower off after the water park every time - the chlorine content is really high (there are NO living germs in that water park!!), so kids were getting rashes if they weren't showering off each night.
enjoy if you go.