Dont know what its like these days, but when I did level 1 in 2003, (not 2001 as I said in my other post), It was Andy Ibbott who ran the whole show. I used my own bike (CBR600) but I think you can hire them. The instructors all had R6's. The day was split up into alternate classroom and track sessions with 2 to 1 pupil instructor ratio. Each classroom session explained a technique which you then tried out on track with the instructor following. I think it was about 20mins for each alternate session
The group varied between complete novices and experienced track day riders/racers. We were split into sub groups accordingly
The first thing we did was a steering exercise to show that we understood the basics of steering a bike. We then had to ride on track in 4th gear with no brakes for the first session. Later sessions were less restrictive, but they try to get you to develop an appreciation of speed and smooth riding without relying on brakes to correct your speed.
As Bond says, it basically teaches the methods you'll find in Twist of The Wrist by Keith Code, which I bought afterwards (Book 2 is better and easier to follow than Book1).
I personally probably won't ever go for level 2 etc, mainly because I only do about 1 or 2 trackdays a year and can't really justify the cost. But looking at your history of riding I'm sure you'll find it worth it if your wallet can stand it
Did I get anything out of it? I certainly did, but as I have said I was more or less a complete novice with no previous experience of riding on the track. I managed to ride a lot faster than I had ever done on the road and my confidence was boosted enormously, especially in the corners (which is what the school is all about)
I personally wouldn't book any more levels just yet, but wait till you see how you get on with level 1 first and whether you are happy with their methods of instruction
Let us know how you get on
