I'm on the South Beach diet and have been for a little over 2 years. It took me a little over a year to lose the wieght and I'd like to lose another 10 to get to my ideal goal. The food on this diet is so yummy and I'm so satisfied with the way I eat, that I plan to eat this way forever!
The "pros" for me are losing over 100 pounds, 100 inches off my body, sleeping through the night, increased energy, feeling like I have control over my sweet cravings (it's a great feeling to sail past a conference room table full of sugary donuts and such without a second glance) and most important I've gone from a size 26 jeans to a size 10! What's great too is that you don't have to count calories, fat, portions or carbs with South Beach. This really was the easiest program I have ever done and I've tried just about every diet program out there. This one really worked for me!
If I had to find a "con" to the program I would say that it is expensive! I buy lots of fresh veggies and fruits and lean cuts of meat where before I would just buy a 10 pound bag of potatoes, several pounds of groud beef (the cheaper the better), chips soda and hostess snack cakes at the outlet store and be done for the week!
There is a South Beach thread on this board that is full of helpful and supportive people. Jump right in, we would be happy to have you!