I lost 3.5 stone with Slimming World - I have put a bit back on but that was entirely my own fault. I'm back with SW now and the weight is coming back off slowly. I think WeightWatchers work more or less in the same way. I find that going each week to be weighed helps me to stick to the eating regime, which isn't to onerous (sp). As boxtops says join us on the Weight Loss and Dieting thread - lots of morel support there. Good Luck what ever route you take.