I've been doing sw, and c25k. Slimming world is 4.95 a week though - that is a lot.
I like the plan - it is easy and I don't feel hungry. DH thinks it ridiculous that I couldn't get my head around eating healthily, but, for example, I would have thought a slice of black pudding was about the same healthiness as a boiled egg, and a glass of orange juice the same as an orange. Ok, I'm thick, but sw spells it out to me, and the free foods make me stick to it as I don't feel deprived. Plus getting weighed and talking about it weekly keeps me on the straight and narrow.
Still, nearly a fiver a week is a lot.
Would online chatting, on here or on facebook, be just as good, do you think?