Hi Lisa,
I am on WW online. I have done the traditional meetings before so I am familiar with the program.
I think it is fairly easy to commprehend. They give you a good overview of both plans.
There are 2 options when you join WW. First is the Core Program. On Core you have lists of foods that you can eat without "counting" You eat until satisfied. You also have an additional 35 flex points per week to spend on non-core foods. Example is if you want half and half in your coffee, you would count the half and half because this is not a Core food. Examples of core foods are pretty much all fresh fruits and veggies, lean meats, skinless poultry, tofu, skim milk, brown rice, oatmeal, etc. It is basically common sense clean eating.
Then there is the flex plan. You are alloted so many "points" for your weight per day. Basically 50 calories is 1 point. Fiber, fat, and calories are factored in when determining a point value. Flex is great for somebody that can't stick to core. On flex you can have a Snickers bar if you want, you just have to count it. You won't have many points left for the day, but you can have it.
I eat mostly core foods but I am on the flex plan on WW. I do flex because if I have a piece of birthday cake, etc. I can count it and be accountable for it. (On flex plan you also get extra flex points per week).
I hope this is clear. WW is like any other healthy eating plan, it works if you do it. You have to count your points, drink your water, get your fruits and veggies in. I like WW online because they have a great points tracker where I calculate all of points in the computer and have a wealth of other great stuff, like success stories, recipes, message boards, etc.
Good luck, and sorry for the lengthy post,
Lori