Just to try and let people know the reality of sw, as typical day for me would be
Breakfast: yogurt (not usually a Muller light!) and fruit or a mushroom omelette
Lunch: baked potato (just the one!) With cheese and salad, or smoked salmon salad, or home made vegetable soup
Dinner: home made spag bol or chilli and rice or stir fry
Snacks do include alpen light cereal bars or ryvita minis, but its just as likely to be fruit or hummus and carrots/cucumber.
From what I have experienced it looks sustainable, unlike constantly counting calories. I don't think its overly high in sugar, and there's not much branded food.
Does it work? Well, its working for me. Well, my average loss is just over 2lb per week. As for clapping - I don't go to class so I don't experience that! But get a huge amount of support online from others following the same plan.
6 stone is entirely doable. It seems like a mountain, but it will come off in the same way it went in - 1lb at a time - as long as you find something that works for you. I know people on a variety of plans - 5:2, paleo, hairy bikers etc - there I'll be something out there that will work for you. Sw works for me.