I've been going since1972 and enjoyed many great races however...make sure you and family are dressed for a walk in the country, there are no spectator stands and it is very hilly.
Another problem is that the organisers will not advertise if a star rider pulls out, I have been disappointed a few times, Guy Martin the most recent, he had told the organisers he was riding at the Goodwood event but they still advertised that he was riding.
It's expensive, with the Gold Cup being £30 last year, £20 for the other events and frankly the entry was poor at some of them.
If it's foggy (weather, not Carl ) and the meeting is delayed they'll still let you in but won't refund if the meeting is cancelled.
It can be very enjoyable but be aware you may be disappointed, especially if you've travelled a long way.
Greg
P.S. There's a few clips of the racing on YouTube