Originally Posted by: snpfarmI always thought the best way to learn chord changes was practice, practice, practrice and even more practice!

Yes, the only way to gain & maintain skill at the guitar is to practice. You can find ways to practice "harder" or "smarter".

I have not seen or heard of that course. If a new product or method helps you or motivates you to practice more, or better, or smarter, that's great!

But there is no substitute for hours logged on the machine. Keep practicing. :)