I've been around the writing community since the days the first e-books were on CDs and have taken a bunch of workshops at conferences and online.
Most have made me think. "Tell me something I don't know." Some have given me "Okay, that's interesting. Let's try this." And a precious few have done what Angela did with this class. She made my foggy Muse jump to life and scream "Yes! That's it! We can do this!"