Jet Fuel seems to be a good way to get a pre-workout stim... I don't believe it is an effective, purposeful, supplement. That is, I don't see people using it for weeks on end and dropping fat.
For the record, I also feel that Lipo-6 is grossly over-rated by many. I wouldn't put much faith in it either.
So that no one gets smart and says, "So then what???" I believe the bottom line is that thermogenic 'fat-burners' are pretty much all over-rated. Diet is key. Exercise is key. Fat-burners can help - but most are variations on the same theme or gimmicky. Many, like Lipo-6 make ridiculous claims (such as how it is the best for women because it 'targets' the hips and thighs, yet, it is the perfect fat-burner for men... huh? each cap is a smart bomb unto itself?... must be since it is mostly caffeine and underdosed guggul).
I like (and am using now) Primaforce's Thermal Rage. Well formulated. Nice ingredient profile with correct/substantial amounts of the actives. Something which is not the case with most other product of the same type. I also think Redline by VPX is good for long-term use as a 'fat-burner.'