Yesterday I took the level 1 class with California Superbike School at VIR. Let me start by saying that the experience was far beyond my expectations. (Thanks Misti for talking me into sucking it up and going regardless of the weather).
The CSS staff was outstanding. They ran a very tight ship. The years of experience showed because from the jump you could tell they had pretty much every base covered.
The classroom instruction was very effective and you get to immediately go out and apply it. With every session I was able to apply the specific drill and felt an improvement in both my riding and overall confidence. The progression of the exercises complements the next and allows you to see a definitive improvement as the day goes on. The debriefings from your coach are quite interesting.... He would ask questions rather than telling you what you were doing wrong. It was pretty cool....he was making sure that you understood what the drill was and why you were doing it and ultimately how that would improve your overall feel, stability, and confidence.
Now I am by no means a speed demon on a track. This was only my second time ever on one. At the end of the 4th session I got tapped on the shoulder by one of the other students and he said "Dude you were flying". I was dumbfounded...I mean I felt faster but I thought it was just because of the drills that were allowing me to get around the track faster.... I said "Really? I didn't feel all that fast I'm just trying to work on theses drills." the two guys next to him chimed in and said....yea man you lapped me twice

Weird how the track seemed to shrink as the day went on.
I can't say enough about how courteous the ENTIRE staff was. Every one was polite and was always willing to drop whatever they were doing to answer a question or work with you.
I will for sure do level 2, 3 and 4. If you haven't already I would HIGHLY recommend you take this course. Worth every penny.