I completed a 6 week course led by Eric and Melissa, it is beyond awesome, and a lot of fun! The learning environment is carefully setup to incrementally challenge your own growth, no matter where you're at socially. No amount of passively reading books, and watching videos compares to what happens inside your own brain once you begin experiencing successful interactions first hand from a safe and supporting group space as this.
Bring an open mind, and willingness to try new things. Expect to encourage and be accountable to your classmates, while they do the same for you, and you'll start to see huge changes in how you perceive and experience social encounters, and experience the world around you.