Lapband has been quoted by all the media and it has been done by many people to curb obesity. It is not the total answer to lose weight but still, it is like what this site said, A journey of a thousand miles, start with a single step.
This site tries to cover the beginning till the end. Tampa Lap band website provides potential lapband patients with counseling before they embark on this invasive procedure.
Then, they also have a section for those who have undergone lapband to find the proper diet for their new gut. There are things to adhere to so the site tries to provide the holistic approach.
I personally do not know if lapband can work but I know a lot of obese people have undergone the surgery. As always, it is good to approach the matter with a lot of research and reading. Start healthy eating and lots of exercise too.