I know several people who take them coupled with a cardio routine with great results (aside from feeling hot all the time). SAN TIGHT is the one that seems to be the best at the moment. Like axolotls said, they wont work as well as ones with ephedra but they wont do as much damage to your body.
Personally, I avoid all the weight loss suppliment crap. The best results will be a good diet and
cardio!. A lot of people take weight loss suppliments thinking that they can shed the fat without cardio, but without cardio you will never get that six pack to show
. My advice is to avoid all fat burning pills. Just my $.02.