I have the book and listen to his show and enjoy them both. I like JZ and have learned a lot from him, but at the same time I never take his advice as the end-all-be-all. I use what he says as a stepping stone and build from there. It's important to learn from others and absorb their knowledge, but at the same time you want to be creative, to experiment and to be an individual.
As JZ said, "Recipes don't make great beer, brewers do!"