I'd love to have a Norwalk juicer. If anyone can afford one of these, I'd also highly recommend it over any other(along with a supplementary manual juicer or another masticating juicer for wheat grass).
Just juicing with anything is good for you. If you don't have a juicer and are on a budget, just buy a cheap one. I have a Lequip mini and I love it. Even a Black and Decker would be better than nothing at all. While I agree, patients with severe diseases would probably not recieve the benefits with a centrifugal device, they ARE good for those who aren't sick and want to avoid disease.
Ann Wigmore is pretty rad too. She's another along with Gerson who was probably murdered to suppress information and popularity.