I have been doing 7 days a week for some time now, averaging 12-17 hrs a day, and I'm quite run down. Can comfortably report that Kaos Gold is probably THE ONLY sustainable high use energy drink on the market.
It is many times better than V, which has an ever increasing after shock to the system. The more you have the worse the effect. After weeks of V, Kaos Gold is punching way above its weight. I suspect it also hydrates as well, instead of the dehydration all the caffeine saturated drinks cause. Go the Gold!