It is very fun experience, on mine the driver and staff were very friendly and even the ride along is a great experience! Hard to describe the feeling except to say imagine going around a turn really really fast.
Enjoy, look forward to reading an experience report
Last year we got the driving experience for my father for his 50th. I go to do a free ride along. I will second that the staff is very friendly and makes the experience go very well. They take safety seriously, but know their job is to help you have fun.