Lyft All Natural Clean Caffeine product review

I got this as a sample from swaggable.com and I tried it on my first day of being on night shift at work.  I was amazed at how well it worked.  I normally drink coffee and I can feel the crash coming about 3/4 through my shift.  I took this a few minutes before the start of my shift in 8 oz glass of water and it kept me up all night.  I did not feel jittery like what most energy drinks make me feel and I did not feel tired at all until I got home.  Will definitely consider buying this in the future.