Bariatric surgey help?

I am due to have bariatric surgery at the first of the year due to health reasons, but I have yet to figure out which one I should get. I am 5’3 @ 258lbs. I was going to go ahead with the lap band, but after talking to the surgeon it looks like gastric bypass would get me the results that I am looking for. I want to lose about 90 to 115lbs. I am scared of the bypass cause of all the other problems it will bring on. However I am really looking at that “dumping syndrome” info cause I have a very bad sweet tooth and that could help out if I cheat on something sweet. I would like anyone out there who has has either surgery to please give me some info on how it went and how much you lost. Give me the good and the bad! thank you for your time…….

Wish me luck!!!!!!!!!!!!!!!!!!