It's been a decent event it's the only event left where it actually is a legitimate racing contest (Red Bull is pulling the plug on their air racing circuit in September). Although it's been a couple of years since I've gone, due to some changes I didn't like, though I may head back this year. I've been going off and on since 2002 and have met people that have been going since the 70's. If you've never been, definitely go and see it. Sunday tends to be the big day with the finals, but if you're just going for the hell of it you do the earlier days for a cheaper price. PM if there's anything specific you want to know about, though the web site Dr Who listed is a good starting point.