My mom and a co-worker do weight watchers and it's worked great for them. My mom had tried it before and didn't stick to the plan, but this time she's really serious about it and she's lost over 40 lbs. I know for her this site wouldn't work because she needs the commitment of going to the meetings and weighing in. She's so busy that if you threw a website at her she'd put off recording, but having the meetings, she can schedule them in to her day and it just works better for her. The site works better for me because I don't want to go to meetings and weigh in with others at a meeting. So, I'd say if you have the money and really want the real life support, then go for it! Otherwise, try this site for a few weeks and if you don't notice a difference in weight and feel you need that extra push you can always join later.
Goals for 2014:
Complete Couch to 5K
Sign up for and complete a 5K
Plan at least 3 outings with the family that involve being active