Does Anyone Use Roy Ziv Guitar Courses?

I am intrigued - he is a MONSTER player, and I really dig his style. Have any of you done any of his courses? Worth the money? I am looking at the guitar speed builder. I'm a high intermediate, but speed is my kryptonite. I have melody/scales/modes pretty well under my fingers. Good with triads. Want to build speed. Any other recommendations for free or paid speed building approaches? I am an economy picker primarily, a little alternate. He's primarily alternate, so that may be an incompatibility. Let me know! Appreciate any guidance in advance!