I am giving 5 stars because it is working so well. With the guarana, adenosine, green tea and amino acids it delivers very pleasing energy to help me when I am less than motivated to exercise on those oh I have to exercise days. It is cutting the fat I want it to in all the right places, including the love handles. I am on my third bottle and go steady and medium calorie reduction. Slow and steady for me is how I like it. I am also experiencing more mental energy. Feeling more awake and alert.