A Writer in a Wheelchair

Hey is there anyone out there reading this who does or has done Slimming World? I've been twice now and I'm finding the whole thing rather "eh"  I really don't understand the diet and tend to think I don't agree with some of it but that might be resolved if I understood it.  But getting to understanding is proving difficult.  Think I'm about 95% convinced i'm not going again but if anyone has any input on that or any other weight loss/diet methods or programmes it's welcome.