I currently have the band, and have had it for five years. I didn't have any of the slippage issues folks have had and overall not many severe complications. But if you've got a moment, here's my story.
Self pay at 252. Height 5'8" and wanted to get down to probably 160 at the time. The initial 4 - 5 months is where I lost my initial 20 - 30 lbs. Most of that was in the recovery period. Over the next 2 years, I lost a total of 50 lbs so at the 3-year out period I was right about 200. And, it was work on my part.
I never got good restriction with the band in that small amounts of food didn't fill me up. I got acid reflux. I got stuck frequently despite eating very small bites and chewing, chewing and chewing. Yeah, getting up from a business dinner to go throw up is so professional. And, even if I was stuck I was still hungry.
I'd go back to get fills and unfills probably every 6 months. Fill because I couldn't get restriction. Unfill because if I did get some restriction I'd get horrible reflux and the things I'm supposed to eat (lean meats, etc) I couldn't but junk food - no problem. Yeah, two bites into a meal and bam - stuck and throwing up. Not able to eat afterwards and being HUNGRY.
The band never eliminated hunger. It does for some, but didn't do so for me. My Dr told me to eat only 1/2 cup of food and then stop. Not because I was full, but to see if I wasn't hungry any more. What? That meant, that I was controlling my food intake with no assistance from the band?
I've since regained 30 lbs. My experience with the band has been that basically I'm doing all the work. It might help a little but not much. I basically wasted a LOT of money. I know that no matter what WLS you have you and only you control what you put into your mouth. Learned that! But, I want a tool that will help me. The band wasn't that tool.
I honestly don't think the band will be on the market that much longer. My doctor was a HUGE proponent of the band but these days, not so much. If you go down that path, good luck. I just wish I knew then what I've learned since. For me, this "tool" didn't work.