Hi Sarah,
I go to group to be weighed, as my scales at home are really unpredictable and I know SW's are correct. However, I don't often stay for the actual meeting as I prefer talking to people on here, and I'm normally really tired and hungry. (class at 7.30pm).
It depends what kind of person you are I guess, but at least you know the scales are correct if you go to class.
Good luck in whatever you choose.
Lou x