I joined TAC a week ago, after completing Tony's free 5-day challenge. It's easily the best guitar learning program I've found. I have tried a number of others, including the wonderful world of YouTube lessons, and TAC wins by a mile. For me, it's the multi-dimensional approach to learning that I really like - you learn in bite sized pieces, covering not just the chord structure and strumming pattern, but how you can solo over the song, and build out your skills and capabilities. In just 2 weeks, I've gone from feeling like a total newbie with my guitar to thinking I can actually play this thing! It's awesome, and I'm excited to think where I'll get to in a few months time :-)