Honestly, I think it entirely depends on the group and the consultant - the first group I ever joined was amazing, really lively and friendly and the consultant was brill. She had lost over 10st herself, looked amazing and was really passionate about helping us. It was motivating, so inspiring and I went every week and stayed for the whole thing. Since then I have been to two or three other groups. While there was nothing particularly 'wrong' with them, I never found them as helpful as that first one. I'd stay for class, but didn't feel I was getting a lot out of it. Also, i found when I was going to class, if I moussed one because of work or something, that would trigger a fall off the wagon. I'm doing it at home this time.