You may learn some things, but you will have to filter out the BS "system". $350 sounds like a decent deal, but personally, I would look for somebody with better credentials and reputation.
What are you trying to learn? Shooting mechanics, "concealed carry"? Have you had any formal training before?
andy t: I'm taking this class for concealed carry. I don't have much time in with the 27 (1200 rounds in 3 years) because I'm better with the 17, but I don't see carrying it in warm weather. The only training I have is Intro to IDPA with Jon Greene (great class)!