Basically it is a fully instrumented teaching center. The software they use is pretty cool, it automatically maps out all your pivot points (knees, shoulders, hips, elbows, etc). Then it breaks down your swing into I think 6 or seven different parts (position one is when the shaft is parallel to the ground on takeaway, position 2 is when the left arm is parallel to the ground on takeaway, etc) and can tell through each one of those points how all your angles are lining up. For me its pretty easy to see at address how my shoulders are too open, then at position one my hands are too far out in front of me, etc.
All of these numbers are put up on the screen corners in little boxes that turn green/yellow/red when they get too far out of whack. If it sounds like it makes everything too complicated, I actually found it to be the opposite of that. In any event you have an instructor who goes over it with you and shows you how turning a little more here and a little less there brings all the numbers back into the green.
You can get lesson packages that include practice sessions as well where you just go in and work by yourself on the stuff you've learned. The monitors are set up so you can control everything pretty easy. There is a big bank of large plastic buttons next to the hitting surface that you can touch with your club to control the camera and video playback. Pretty slick. Especially on a day like today where it was pouring rain but I still could go take my lesson and do a practice session.
