It's such a great diet if you're focused and can stick to it. I have always done the 'soul source plus' plan where you have 3 meal replacements a day and then a carb free meal in the evening (chicken and veg etc.) I found that I can get very creative in thinking of interesting meals with the food you're allowed to eat! I couldn't cope with completely replacing meals and not eating at all, I'd go mental. The price depends on your consultant. I got very lucky and found a very lovely lady who knows what she's on about and is very supportive, and she only charges £35 a week which is cheap for CD. The average weight loss is a stone a month which is brilliant if you can stick to it! I found it extremely easy the first time round, but it gets harder each time you restart. I think because I've set myself a goal which is only a stone and half away, I will find it easier this time. Getting down to my ultimate goal seems impossible if I think of it as one big chunk!