The Fat Sick and Nearly Dead has a website called The Reboot. There is a thread on juicers.
There are two types, one is more $, quieter and gets 30% more from greens. The downside is you have to cut stuff up quite small so it's slower. The other type which the Breville used in the movie is like is loud and you can juice faster. You do not get as much juice from greens.
I have both the Breville and the Angel which is my brother's $1,000 juicer and I use the $300 Breville because it is faster and easier to clean.