My first stint into the low-carb world was with Somersizing. I did it sucessfully for over two years and was very happy with the results.
It works and it works well! Just can't get overconfident and slide back into bad habits..
The key, I believe, is to keep the carb meals to a bare minium to keep your insulin stable and cravings for sugars at bay.
I loved having mixed berry/mango smoothies in the morn and my DH and I lost 35+ lbs each in a short amount of time. I have all her Somersizing books and use the recipes to this day, all the time. Her pro/fat options are also very Atkins friendly and I just love her attitude and her explanations of how sugar effects the body are very easy to understand.
That said, I would rather be able to incorporate nuts, avocado, etc..and stay away from the carb options, so Atkins is a better fit for me in the long term.
It's an excellent program, if followed correctly, and was the perfect gateway into the lc world for me.
Incidentally, my daughter just started SSing 3 weeks ago and she's loving it. She is also avoiding too many carb/veg meals...once in a while having oatmeal with skim milk but that's it. She feels great and has dropped 12 lbs.