GFuel is great. Being a powder, you can choose how much of a jolt you want. It doesn't have much caffeine in it so it does not make you jittery. Also, it is not loaded with sugar so you avoid the crash. They are always coming out with new flavors. My favorite is snow cone followed by raging gummy fish. All in all, I have purchased 8 tubs of the stuff over the last few months. It is always consistent and great!