Not at all hungry! Besides a little bit right before meals, naturally. I think the key for me is the unlimited fruits and veggies thing (except for starchy vegetables and things like avocado). I mean, yes, it's possible to overeat fruit and veggies, but I don't think most people will. I know I don't*. They fill me up and then I stop way before I get to a ton of calories. On other plans, I'd sit there and think "Hm, this muffin is x number of calories, so I can have it if I cut back here..." Result? I'd eat the muffin and still be hungry a half hour later because it's a big simple-carb filled muffin. With the WW plan, I just go straight for the fruit, since it's 0 points. Still got sugar in it, but there's more fibre, more water and I get full off less. Okay, the logic might not make sense to everyone, but it does to me.
I like the weekly points and activity points too. So if I go over my daily points, it's not a big deal. And if I want to go out for a nice dinner one night, I can. Fortunately, I really like fruit. Someone who detested fruits and veggies with a passion might have a harder time.
I definitely still have things I want. For example, I still have a little chocolate every night, about an ounce, but I go for something really rich (huge fan of 70% dark chocolate, but I know that's an acquired taste).
*As dorky as this might be, I've actually plugged my daily food into My Fitness Pal to see what the calorie/protein/carb/fat breakdown was. It's more or less right on target, amazingly.