I did one of these REI Outdoor School things (Intro to Road Biking --yes, we used road bikes, but we didn't do any biking on roads, just a paved off-road trail) and it was a total waste of time and money. The main focus was promoting the Novara line of bikes in hopes of making a sale. Hopefully this one is better than the one I went to. They had us stay in the same gear so we didn't even learn shifting expect through lecture and we didn't ride on roads, so we didn't get to learn how to ride with traffic or negotiate stop signs or traffic lights. And, yes, I did voice my disappointment to the instructors (they said I should put my concerns in my evaluation), submitted a detailed evaluation, but never received a response from REI . . .
