CMS, I hate to be a party pooper, but I really believe these quick fix diets are just that. Quick and don't really fix the problem at all.
These shake diets, (and I've done them before) are not a realistic way of eating. They are just not normal and they lead to the deprivation driving you mad and then you binge as a result.
If you want to achieve life long healthy weight you need to slowly and surely address the issues of why you overeat and slowly cut down on things.
If you take everything away and restrict yourself so much I think you're destined to fail. Then the feelings of failure lead to feelings of sadness which quite often lead to overeating.
Please try a more healthy and normal way of healthy eating.
I believe that diets don't work.
Check out this website: http://www.ifnotdieting.com.au
Dr. Rick KAUSMAN has written a book too "If Not Dieting Then What".
It's well worth a read.
Good Luck and sorry if I've gone on too much.
If you do decide to do it, (Because I know they are tempting) then I hope you do well.
Winners MAKE things happen,
Losers LET things happen.