I am a 20 year male that went from 308 lbs. in May 2008 to 170 lbs in March 2009 on the Beaumont diet (lost 138 lbs in less then a year) without bariatric surgery or even the exercise physiologists' help. And now I am currently 164 lbs. today (Thanksgiving 2009). If you are motivated this program will work and you will keep it off, I am living proof of that. It will truly change your life.
Pros: the facility, technology, doctors and staff, the diet
Cons: none it is expensive but worth it