I did it to gain back my health and life. I started out at 461 pounds. Before the surgery, I took a nutrition class (a requirement) at Kaiser Permanente which lasted 3 months. I would recommend learning and or taking a nutrition class because, once you lose the weight, you want to keep it off. It was required that I lose weight prior to surgery (this reduces risk of complications); I lost 29 pounds before the surgery.
I've had no complications or side affects. I can eat most everything, but I eat very slow and a small amount.