One of my closest friends had the lapband surgery done about a year ago, and so far, she has lost about 115 pounds. Her goal is to lose about 150 or so. She has had to change her eating and drinking habits quite a bit, but they've been reasonable changes. She doesn't eat bread much anymore, and she also doesn't drink carbonated drinks anymore either b/c of how it affects the banded stomach. She also eats small portions at a time and taker her time while eating them. For her, it has been a good experience with no adverse side affects. She gets her band filled when she feels like she's able to eat more than she should at meals, and she has been more active to help with the weight loss. Her whole family has gastric bypass years ago (except for her), and they eventually gained all their weight back because they weren't consistent with maintaining the lifestyle necessary to keep the weight off. I don't recall which bariatric center she used, but it was probably one in Plano, Texas. She had her surgery at Presbyterian Hospital of Plano and had a wonderful experience there, as well.
Good luck with whatever you decide!