He is quite the sales pitch personality and I find it quite annoying. However, if you can get past everything being a "secret" both his Cyclo-Core and Cyclo-Zen products are quite good. The Cyclo-Zen 8 Minute Power routine has maintained my fitness for more times than I'd like to admit when I travel for work. YMMV. I do some form of his core work a minimum of once per week. I feel it is quite effective.