Yes but.... It certainly does and many people are extremely pleased with the outcomes as long as they have realistic expectations. However, it is not without risk and one should proceed only if informed and comfortable with the risks entailed.
Yes, to a point. Healthy lifestyle is the most important factor. Non-invasive treatments, such as cool sculpting and liposonix, have excellent safety profiles but produce mild-modest results. They are best in people close to their ideal weight, with localized areas of unwanted fat. Liposuction is more invasive, has more risk, is more expensive and with longer recovery, but produces more dramatic results.
Yes. Body contouring when done for the right person by a skilled plastic surgeon can be incredibly rewarding for many people. You should be on the same page with your surgeon and make sure you understand all the options available, the pros and the cons. Good luck.