I never see in mentioned here, and it's a damn shame. Why, you ask? Because when used properly, it increases mood, focus, and mental acuity. Taking a pre-workout but need a bit more? Throw one down the hatch with it. Pulling an all nighter, but don't want to slam 16 cups of coffee? Pop a lucy or two.
I've found daily use to be somewhat problematic, as it creates a withdrawl situation due to the . But on an irregular usage basis, its absolutely outstanding, insanely versatile, and cheap to boot.
I love having it around for emergencies, the feeling of clarity when you need it is absolutely priceless. AMS puts out some solid stuff; nocturnabol is very good, too.