Tony’s approach to guitar teaching is truly unique to all others I have tried, including in-person instruction. For me, his approach focuses on 1) getting you to play every day through both coaching and the way the materials are structured. It just keeps you motivated, once that happens more learning takes place. And 2) he focuses on teaching just those things that are needed in guitar playing 100% of the time. No teaching or practice is wasted learning things you will rarely use. This accelerates learning. Given all that, the courses are best suited for beginner to early intermediate levels of playing. Good for those just starting out, those coming back after a hiatus, and older players.