Sorry I'm late to chime in on this...
About 3.5 years ago, I did the master cleanse diet/detox, whatever you want to call it. I kept a journal of my experience every day I was on it. I did it for 12 days and thought the only difficult part was downing the saline solution in the morning... That, and making sure I did it early enough so I could stay home and close to the toilet. lol
If interested in my experience and coming off the detox, just ask. I can dig up my journal.