I've done WW three times in my life, very successfully (eg. 4 stone in mid 40s). Early 60s, not so quick, lost 2 stone in 2 years. But I keep putting it back on. Mid 60s, tried for 28 months at WW, was same weight at the end, so I gave up. After 5 months, and another 6lbs on, I had a go at SW. Very different, much much easier than WW, so much FREE food. I stay for class, but they are not very good though everyone loves the leader, no idea why. However, my rate of weight loss is very slow (now 65), and it's taken me 6 months to lose 13 and a half pounds. In a week less than me, one member, early 40s, has lost 3 and a half stone and is at target. Both WW and SW are similar in that they encourage a healthy approach to food. On neither should you ever feel hungry or deprived. Horses for courses. SW for me at the moment, and this time, it's NOT going back on again, I'll keep going to class.