Ha !
I have only tried red bull... gosh, I was in the middle of the jungle too tired as we had been looking for fossils... nasty... and I gave that thing a little try... I cant even remember the taste as I barely drink a mini portion and gosh, I literally felt I could fly !!!!!!!
For me it was too stimulating....
By the way, my ex boss is considered like "the mother of taurine", (you can google her, Herminia Pasantes) and says taurine has NOTHING to do with energy or stimulation