Boy do I wish I could schedule further sessions. I actually live in Boston and happened to be in Atlanta on business, so I figured I would bite the bullet and do it. Lynn and I did two half days, 9-1 each day. I played nine with a buddy who lives down there on the afternoon of the first day, and as you might guess it can be hard to take something new to the course. My second day we finished just in time to head to the airport.
To answer your question, I don't get to practice or play as much as I would like, but the hands on help with the concepts discussed in the book, on this site, and in the videos was worth the time and effort. Even when I pick up a club, or a dowel, or even an umbrella, the alignments and movements I rehearse are far more effective than before. Do I slide back in to my old habits? Absolutely, but as I said, I also hit some really pure and beautiful shots. That's what keeps us all coming back, right?