Just recently returned from the V-Performance Academy as well, and the recent review by
@TexasHawkeye is spot-on. FWIW, I paid my own way (since I am not yet an owner) and I feel it was 100% worth it.
The instructors were all fantastic. I have zero track experience (outside of the virtual/sim-racing world), and the instructors were able to take my lap times down from 1:36 on Day 1 to 1:19.2 by the end of Day 2 (not that the goal of the class is to be as fast as possible...but I loved the challenge of doing so!).
My driving ability is average at best, so this improvement is a true testament to the quality of instruction and efficiency of time spent on track...although I certainly would have loved more track time of course!
If anyone is thinking about going, just do it! The only thing I wish I would have done differently would be to hang back just a little (to give plenty of room to students in front) when not directly behind the instructor on the lead/follow track laps and use those laps to fully focus/push while only tuning into the radio traffic for any sort of safety announcements or direct logistical instructions. I sort of gave myself a little mental respite while not leading and only focused on certain corners, but I should have stayed focused the entire lap in order to get the most out of each track session. In short: Use every lap as an opportunity to improve on every corner...you can rest after the track session!