I don't follow any programs myself, but I know one co-worker who did few years back slimming world. They have some sort of award system and stickers. She was talking about free food and treats.
Basically from what I understood you have to attend weekly meetings. Sometimes she would bring food with this slimming world brand purchased in Iceland shop. Personally I prefer to cook my food from scratch, and know exactly what goes into it. Preparation is the key! Always be prepared ahead. She lost a little, but then put back even more after 1,5 years. It depends on person's metabolism I guess. Now she wants to go back again to slimming world. #take2