I've lost 35 pounds since June by going to WeightWatchers and slowly increasing exercise. I do well with a diet of normal, healthy food and a little room for favorite snacks. Eat less, move more. It's not Pearlesque, but I'm very happy with my success so far.
You'd get the same results without spending the money on Weight Watchers if you just kept the same diet of normal, healthy food and exercise.