It's amazing to learn directly from Casey Reas, Lauren McCarthy and Chandler McWilliams.
The sessions are always really interesting. The method usually follows this logic: Chandler explains in detail every concept, keeping it easy to understand; Casey gives you cool (retro) referents and a some history related to the session (always really interesting! ); then Lauren makes you think forward with all the possibilities of her program, with demonstrations step by step.
Martina Solés is taking this course right now and found the course difficulty to be medium.