I was on the raw diet for 500+ days from Januari first 2010 to May 27th.I was inspired to start it by Steve Pavlina and I've read several books about it since. I tried to follow the vegan 80/10/10 (~10% fat) version of the diet (but the fat thing wasn't all that strict.
Placebo or not, I felt more energetic so for me it worked. I stopped because of travel to India and because of the significant costs involved (for a student); possibly I'll go back some day. I still remain a vegan though.
Thanks everyone at this site for the support and feedback!