Well, for sure it keeps me going. It makes me P/U my guitar most days. Then after I go on to play on my own (usually covers from Ultimate Guitar). In reality though, most of the exercises I find to be quite simple. They are well demonstrated. Occasionally the rhythms are problematic fore me but usually not for long. I think I probably need a higher level of tuition as I am clearly not a beginner but nt played for 40 years (until about ¾ years ag when I restarted). However, I have ben introduced to D, Dmin and G open tuning which is fairly new to me. I have enjoyed doing the simple stuff though as it is foundation stuff I have not done before😊.