Most of the students were fairly to very experienced sport bike riders. Several were amateur racers. However, there were a couple of riders with only 2-3 years experience on the street as well. The School divides the students up into beginner, intermediate and advanced groups. They are careful to work at the level of the student, so even "beginners" feel comfortable. If you are new to sport bike riding, then the school and the track would probably be pretty intimidating. If you've got at least a couple of years under your belt and are comfortable on your (sport) bike, then the school is definitely a way to improve your skills.
Oh, and as far as dropping the bike, its simple. You provide a $1000 deposit on the rental, which is refunded to you at the end of class as long as you haven't damaged the bike. If you damage it, the cost of repair is taken out of the deposit. If you crash a bike (yours or theirs) during the course, you're done. You do not continue the class. No refund on any unused portion of the course, either. Quick story: When our class started, we had 13 students. I was in one of the fast intermediate groups and we were going down the middle straightaway at about 80 and accelerating when the student in front of me for some unknown reason grabbed a handful of brake. We think he started to close up too quickly on the student in front of him and panicked. Anyway, he immediately high-sided the bike. No serious injuries, but spent the night in the hospital for observation. Needless to say, he was done.
The penalty for crashing a bike sounds severe, but it keeps everyone riding within their limits, and it didn't keep anyone from pushing the bike and improving. In fact, my wife got so good that by the end of class, she went from the beginner to the intermediate group, won the "Most Improved Rider" award for the class and received a free set of Michelin PP2CTs from the school as a reward! Other than that one high-side, there were no other incidents during the class.