I think most of us use McKenzie in some form. I don't feel there are any cons. It is a very useful assessment tool whether you believe the underlying theory or not. It also provide patients with a range of simple, home-based exercises that in most cases are effective in reducing discomfort resulting from mechanical and some discal issues.

Should you have an opportunity to take part A,B and or C then this would be a very useful investment of your $$. It's like building a toolbox or library. To be a great clinician you need a lot of tools