Disclaimer: I received a sample as part of my JackedPack to review for free. As always, all opinions are my own.
I'm usually hesitant to try out pre workouts, and this wasn't an exception yet I was pleasantly surprised with the results. I received a sample of EVL Nutrition ENGN in blue razz flavor as part of my August JackedPack and really liked it. The flavor was good, kind of like blue raspberry lik-a-stick powder. It mixed well, no sediment on the bottom of the glass. As for side effects, I only got a slight itch in my hands and face. I received a nice burst of energy which got me through a 4 mile run no problem.
Overall I would buy this as it didn't have the adverse side effects that others had and tasted good.