This is different than bike safe which I also did once and probably do another one this year. You don't get to practice high speed cornering safely on the road. I've learned about my bike in one day more that I did in 2 years since I've owned it.
I want to do the same with the CR, to see how it feels during high lean angles, how much grip there is in the tyres, getting my confidence up and of course have a lot of fun while doing it.
Here's a pic from last year while I was being followed by one of the instructors.

The other course they do is and advanced machine control day where you get to practice and become comfortable with difficult manoeuvres like high speed swerves, high speed emergency brakes (50mph+), recovering from front lock (not applicable on the ABS machines but still very useful), balance and slow speed manoeuvring etc.