Hubs had lap band done in August 2011. His surgery was so called ambulatory, and he was discharged the same day. He was a little groggy for about a week, then his usual self. He's lost a total of 75 lbs to date. It has changed the way he eats, and that will remain the case forever. He used to eat nothing all day, then eat a lot at dinner. Now, he eats 3 small meals a day. There is nothing which is truely off limits, but he still suffers nausea if he eats too much or too quickly. Cake, bread and baked goods are tough on him. So he's largely eating fruit and veg, protien, and a bit of carbs.
He has always been one to eat home cooked foods. He just ate mountain man foods (calorie rich and hearty, a diet that worked during his days as a ski instructor), when he is now a city boy. Also, he ate too much of them, too late in the day, and was sluggish and lethargic all day as a consequence.
The lap band has basically forced his hand. It makes him only able to comfortably eat a sensible portion of a sensible balance of food.
I understand that the band is easy to undermine though, especially if you are an emotional eater, or there are other things at play. The band for instance wouldn't stop you from having milkshakes or cheese doodles all day. If you hope to continue to eat that way, save yourself the bother of the surgery.
As for the pain, his biggest complaint, at the time was resolving gas pain (attendant to his orthoscopic surgery).
Good luck to you and yours,
F. B.