That the one in Nashville?
Yes I've taken it twice in Cinci...mostly for the materials that come with it.(back when the class was $299)
I got $700 worth of materials to boot.
They have a whole roll of chrome to work with. Having Pate there helping me wrap VW Beetle fender in Chrome on their dime was worth it. (if it's the advanced training) which was the main reason I went. Only other way working with Chrome is to buy some.
If it's not too far from you and you can spare the day off, you got nothing to lose. A little knowledge goes a long way in this trade.
Those classes will be less useful if it's filled with newbies & you gotta sit through "the properties of vinyl" etc. If you are a newb though...absolutely go.