This was ok, not great, but drinkable. I did enjoy the fruity flavor and the bit of menthol like effect. I actually noticed being more focused on writing my paper (which happens to be on the magnificent and interesting wonder insert scar ism here of drilling for natural gas from Marcellus shale, 10 double spaced size 12 font pages) than i usually am. And that is coming from a major procrastinator. I am not sure if it is a placebo or if it really does what it is supped to do (the ingredients make scene for that) . Overall not bad.