Gave me energy, but made me feel irritable.
It wasn't a good productive energy like have a couple of cups of coffee, or taking a cold shower - it was a "What's your problem, jackass?!" kind of energy. I felt great about 4 hours after taking it, maybe because it started to wear off.<br /><br />If you had nothing else available, and you had to have some kind of stimulant, this of course is better than nothing. I used it because I forgot to take my usual (one green tea tablet/one ginseng tablet) before I left to start the night shift where I work.<br /><br />Also, I mixed mine with Gatorade, so it wasn't too bad. Other people have written reviews stating that it tastes pretty awful. It was brown though, and made my Gatorade a nasty color, and flavored it kind of like coffee.
Rating: 2 stars