Will this procedure really help me scale down my thighs?

You can certainly try exercising and dieting however your thighs are probably affected by stored fat deposits that won't respond well to this. In addition, you may also be affected by loose skin. As a result, you may want to ask first if you have a lot of loose skin. If yes, then no form of liposuction will adequately address this. The fat may be eliminated, but you'll be left with more loose skin that will continue to make your thighs "jiggly". Loose skin can be removed with a thigh lift, which will also address unwanted fat. 

SmartLipo can decrease the thigh girth by reducing the amount of fat that envelopes the thigh muscles. "Jiggly" thighs can be a result of loose muscle tone or excessive fat overlaying toned muscles. before a patient decides to go thru the procedure it is important to understand and to clarify with your doctor what your main concern is. if its "jiggle" due to loss of muscle tone then its better to tone up the muscles with exercises and then seek another opinion for a possible SmartLipo. if the "Jiggle' is due to excessive fat that can be improved and then further skin tightening can be acheived with regular exercises

Using a laser liposuction device is a great option if you have moderate to good skin tone and want to reduce volume in certain areas.  I would stress that your weight should be relatively stable and that you maintain your balance of diet and exercise to maintain that.  To better answer whether Slim Lipo or Smart Lipo is an option for you, it would be helpful to have a picture to see.  Both procedures have a very high satisfaction rate.  Good luck.