My wife and I went to
Simply for Life for a period of 3 months and it really changed the way we eat. We dealt with Scott, but from what I understand they are all good. We were very impressed with what he had to say. It's not easy or quick, but it makes logical sense which was what attracted me the most to it.
Essentially they have a database of recipes which they pull from based on the foods you like or don't like. The first week was frustrating as hell because you are trying to stop a lot of bad habits, but it was one of those things where once you stepped on the scale and realized you'd lost 5 lbs. it didn't seem nearly as bad. It was kind of cool, you get your own login id to the website and you can browse recipes that fit with what you have specified as preferable foods.
I was one of those guys that didn't really diet, i just decided to make healthier decisions. After one meeting with a nutritionist I realized that my healthy decisions really weren't far off from my crappy decisions. It wasn't hard to see why I was hitting the gym 4 times a week and basically losing no weight.
There was nothing outrageous or bizarre about it. Basically the attitude was that dieting works for the duration of the diet. If you are serious about changing your weight for good then you need to learn to change your entire dietary lifestyle. What I liked about it was that it didn't really feel like a diet, it just felt like I was making proper healthy decisions. Anybody can lose weight if they obliterate carbs from their life, but it isn't necessarily a reasonable expectation to keep eating like that over a long period of time.
I work in an office filled with women in the 30-60 age range and it was just before summer, so everybody and their cat was dieting. I routinely received comments on how awesome my lunches looked and smelled and how they wished they could eat like that (because their current diets wouldn't allow it).