M.J.
I've been on Weight Watchers since May and love it! I'm doing their online only program since I don't have time for meetings. I've lost enough weight now that I need to take in my fall pants to get altered. I only had a bit to lose -- eighteen pounds -- so the weight loss has been slow and steady (if you have a lot to lose, you'll tend to see larger drops each week). I have a very low point allocation, so there's just only so much weight that can come off. However, research has shown that slow and steady is the way to take it off and KEEP it off, so I'm pleased. I've lost about 13 lbs. so far, even losing weight while on a cruise!
It needs to be a lifestyle change, not a diet, and Weight Watchers teaches you that. You learn to evaluate what you eat more -- but no foods are off-limits -- and add in exercise in whatever way you can. If you eat pre-made foods and shakes, I just don't see how you're prepared to manage daily life with real foods.