Define "working" .... because it keeps me wired and UP during the day, gives me great energy and can dull my huge appetite in a second.
BUT, does it burn my fat ass? No, but that is because my diet is much less than stellar. Once I start working on the diet part, I know everything will fall into place. In all honesty, I am only taking it right now because I am so sleep deprived and scatter brained I need it to help me get things done.
I love it, but I have always been an ephedra junkie. I take Cardio Breeze before my AM workouts and I LOVE that.