Hi mom of a few.
I worked with someone how had that done. It is a lifestyle change, but he lost weight and feels good.
From what he told me, he has to drink and eat mushy protein which could involve using a blender for meatloaf, unless it is really soft. Pasta for carbs is the kind of texture he can tolerate from hard foods.
Also, when he gets the band tightened, it can be a little uncomfortable for a day and he can take in less food so he has to eat smaller items more often. Also, he seriously would have to let out these outrageously loud burps.
Again, it is a lifestyle change, but he said he lost weight and the health concerns he was worried about were greatly mitigated.
Not sure if that helps, as each person is different. I mean, some people can join a gym and in six months of training look very different and feel much healthier.