We've done several of these since spring with DD7. She has really enjoyed and requests to go back even though we spend almost as much time in the car as we do at the class (we come from near Jacksonville). There are a number of east coast and central Florida families that attend - one from as far as Tallahassee (for an older child). They also have weeklong summer camps at several locations, includin the main Stetson campus and usually one at an Orlando elementary school, Princeton I think.
We've gotten a little more selective about specific topics and some scheduling conflicts, so didn't make the November program and will miss the December program as well. Am waiting for the spring schedule to come out so we can get these penciled in first.
They have a fair amount of hands on stuff in the younger group (K-3rd usually), but much of the material itself is pretty advanced. Recent focus has been tied to topics covered in Magic Tree House or Magic School Bus - December is Polar Express.
Since these are targeted at gifted kids, the grade levels for the classes aren't absolute, but they try to manage them because many of the older classes can involve some pretty intensive fine motor skills (rocketry, sheep heart dissections, etc.).
I think the parent classes are quite valuable as well - the director has a parent resource library, has had excellent speakers - and getting information from other parents who have BTDT in their own school districts (or possibly even your district) builds a useful scaffold for advocacy - at least it helped me a bunch last school year.
