I go there fairly regular. It's not far from my home town back in TN. It's an awesome park, with something to suit just about every level of vehicle build-up.
However, the more "hard-core" obstacles are not too terribly full-size friendly. They do have "chicken routes" around most of those obstacles, but that's not to say you won't be called out by one of the locals. (I was and needless to say it wasn't pretty. /forums/images/graemlins/grin.gif)
As a matter of fact, one of the obstacles, called "the Tunnel" is (or at least was) scattered with some various K5 parts like a fiberglass top and bumpers from what looks like someone who got in over their head. /forums/images/graemlins/grin.gif
I feel the costs are reasonable, in consideration that it is private land. They also have a some what well equipped shop with welders and air-tools to fix your junk when it breaks, plus unlike most other private parks they allow night-time rides. /forums/images/graemlins/waytogo.gif
Holiday weekends are awesome out there, but it does get crowded. They ut on some "tough-truck" competitions and mud-bog races. It sucks to have to wait like that if you are driver but, if you are just a passenger it makes for some good entertainment.