My personal feeling is that if you have a little bf to lose and you are having trouble doing so with a relatively
strict diet and a good workout regimen, then yeah, you might want to try it. If you're substantially overweight then I would avoid it for the following reasons:
It can speed up your heart (see the Orioles pitcher that died) not BECAUSE of thermogenics, but they certainly did not help (although my understanding is that he was taking three times the recommended dosage). Also, the fatter you are, it should be easier for you to lose it.