I have had it done 6 years ago and I lost 90 pounds. which was all the weight I had to lose.
I had a baby about 3 yeas after, and only gained 20 pounds during the pregnancy, I was back to prepregnancy weight by the bris.
It is a big change but I feel it was well worth it.
There will always be naysayers. Those who say “diet and excersise” but for many people it just doesnt work. There are those of us that just cant limit our food intake without help, or who cant/wont excersise.
I will be honest and say it was not smooth sailing and I did suffer from minor complications.
I can also say that being 100 pounds overweight comes with a whole set of complications on its own.
Make sure you have a good support system, a great surgeon and you should be fine.
The frustration I sometimes feel from not being able to eat as much as I want is fleeting. The satisfaction I get from fitting into a size 8 is priceless.
good luck