I don't usually stay to the meetings, I'm afraid i find them quite boing although the people are nice and we'd probably get on if we were allowed to talk about something other that what we eat and how fat we are . lol x
I don't weigh myself except at group, and I find that handing over my GBP 5 and getting weighed in public is all the motivation I need.
The Slimming World plan is good and easy to follow without too much weighing and counting, I've got no complaints.