I go every year. It's a great event, I can't rate it highly enough. Probably my favourite event of the year but not many kitcars there usually.
If you book early enough and through an attending club a weekend ticket for two is under £100.
If you've got a BMW don't forget to take your key fob, if they have their marquee up you get free coffee/tea and goodie bag and more importantly somewhere to shelter if it rains :-)
Up at Silverstone yesterday, have to say a bit disappointing as far as Classics concerned, seemed to be fewer and fewer each year. Seemed to be over run by Porsches this year all fairly new, hundreds of them. I would say well over 50% of the cars on display were less than 10 years old.