Amy had it and lost around 100 pounds. She regained some weight - I think 40 lbs, maybe 50. She says all the time that she regrets it and wishes she'd done it through diet and exercise. I'll talk to her later and get some quotes for you.
Aww, That stinks for her. I am so sorry for her. This is my biggest fear. Most I have spoke to are happy about this but, some are not. This is such a huge life change it would be aweful to not be happy with it afterwords. I would be interested in knowing what she didnt like about it.