Well personally I can drink a pot of coffee and go to sleep with no problem. When I go on long trips I tend to get pretty tired in the car, no amount of coffee or pop will keep me awake. The 5 hour energy does and for a good 4 - 5 hours. Amp or monster works also but they make you a little jittery and crash after an hour or 2.
So in my opinion the bad taste is worth it if coffee does't do it for ya.
So in my opinion the bad taste is worth it if coffee does't do it for ya.