I found no other online guitar lesson program that helped us structure and track practice progress. The practice seemed daunting, and filled with "shoulds". . . as in I "should" practice more. But practice what? How do I know I'm making progress? What is a realistic goal? And how can I be accountable to myself or others? Tony's Acoustic Challenge helps me with that. I just started the 30-day challenge, and am really enjoying it. I favor the blues, and have actually shouted out a yahoo after learning a blues shuffle and blues bassline. I am thrilled!