I love red line by VPX. This is one of my favorite energy drinks. It is very much on the stronger side, so if you have a low tolerance for energy drinks than this may not be for you. It is strong, but I find it gives a very clear energy. I like all the flavors I have tried and would recommend them all. Don't forget to shake well before drinking, and I find that it doesn't mix well with any other powders.
This stuff had a bitter taste to me. and shortly after gave me a bit of a stomach ache, However the energy was outstanding, and the focus was unmatched. This stuff should not be mixed with any other energy drink.