It sounds like a good time and speaks volumes about extra things you can do at theme parks to not make it always stale. I did the Behind the Scenes at Disney World and was greatly impressed.
I didn't catch it in the article, but how long was it and is there any requirements (like age, ability, sanity)? If there is not big requirements, thats one up on the Living Seas Tour at EPCOT. You need to be a diver for that!
$170 sounds like alot, but pretty good compared to Disney World's kind.