So, now I've done it and I thought I would share my feedback on it.
First things first... it wasn't a race, there was no timing and passing was done via point-bys like a time trial. It's an experience.
Was it driving a fast car slow? No. You could go as fast as you felt like driving and the track allowed for. I hit 120mph. So, not slow. You could optionally paddle shift. Traction control was on in all the cars, but it was in Sport or Performance mode. I never felt it.
The biggest draw back was by far the limited number of laps (3). The best way I can describe what those laps are like is: doing an autocross in someone else's car on a track you don't know.
You have very little time to get comfortable in the car before you set off. I counted, and I literally touched the brake pedal twice before barreling into the first hot corner.
As nderwater stated above, you aren't anywhere near 10/10ths. I was probably about 7/10ths.
(Begin Excuses)
Noah's flood had literally just passed as we pulled up to the track. It was a lot wet.
In the briefing / class room training, they told us we were going to drive a dry line for a third of the track, a wet line for the third of the track, and the rest of the time would be spent dodging water. None of this ended up being true, but it was something they filled my head up with.
I hadn't been at this track since it had been repaved and reconfigured. Even before that it had been about 5 years.
I was instructed to let a car pass, so I slowed, then they changed their mind and wanted to do it later. Then when I let the car pass, I was told I was following too closely.
(End Excuses)
So the video looks like I am going slow. And I was.
http://www.youtube.com/watch?v=tNSfzfXMq48&feature=youtu.be
Was it worth it? Yes, for the first time. My wife went with me (and drove), and we both had a good time. It's not a track day, if that is your expectation then you will be disappointed. If you just want to drive a super car in anger for a couple minutes, then this is the ticket. Xtreme Xperience did a good job of hosting and making it easy to do. You get in a line for your car like you are in line to ride a roller coaster at Six Flags.