I am a lifetime Weight Watcher member (1986)....but am not at goal presently, but working on it again! Summer at the lake and chips, beer, brats, and marshmallows in the cupboard are hard on me! LOL I also do My Fitness Pal. I have done Aitkins and it worked great, then I added back fruits and carbs....it was a lnon-liveable plan for my life.
Weight Watchers is basic common sense eating, nothing you can't have.....but you learn to make wise decisions after you blow all your daily points on something! It is almost a game to see how much you can eat and stay on program, and it can be a lot of food. Love WW, and it works well for me. (give me a month, it'll prove itself again!)