I've got the DVD and I found it a real help. I've seen lots of Darrrell Klassen's DVDs and he's good but I just find Marc's advice more relevant to me. Since adopting the "Squaring it Up" style, my distance has increased by 20-30 metres and my accuracy is unbelievable. I'm still not a huge hitter but I can be on the green on any Par 4 for 3 and looking for that single putt. But if a take 2 putts I'm still OK given my handicap. So I would say definitely look for the DVD. Marc's previous one called something like "Body swings the plane" was really good and stopped my from swaying.