I recently spoke with my friend about a pricey class they were taking and I read up on the instructor. My friend swears by this guy and so I researched his background and watched one of his videos. I also read my friends before and after screenplay and didn't notice much difference, and their plot line was suffering the same problems the course was supposed to help them eliminate. There are a lot of experts in screenwriting offering classes/seminars and I wonder how many customers are improving their work. Have you recently taken some screenwriting courses and what's been your positive and negative experience?