I was unfortunate enough to go last year, the first one at the County Showground, and they won't be getting any more money out of me. It is not a patch on the old Hop Farm show. I'd done it and the truckfest in about two hours. Think of a low quality boot fair, held in a transport cafe lorry park with a few American vans with wolves and eagles painted on the sides, filled to the gunwhales with tacky cheap immitation native American bric-a-brac and a couple of confederate flags on whip aerials. It was total crap. Just a very poor unimaginative money making scheme.
If you do go I hope you have a better experience than I did.