Yes, I did the Blessed Herbs cleanse in late 2005. It was interesting and if you didn't consume the mixture fast, it hardened...it was funny. I had better luck with http://www.humaworm.com's Colon Cleanse 2 months ago. Potent, hand mixed/ground up the day your order goes out and it's only $26 for a 30 cleanse. And their service is amazing.
Either way...you will pass stuff. :)