1st off I'll state I never had the original. I'm a little bummed I never got to try it.
I tried my 3 pill sample pack. The first day I used it, it seemed to perk me up a bit with a slight mood elevation. But it never grew to the level I had hoped. After that, the next 2 times I used it were complete tank jobs. almost nothing. A slight spike of energy shortly after taking it, and then basically nothing. The only thing I've noticed was my eyes feel like I took something w/ Guaifenesin in it.
My eyes feel really dry. I feel no extra energy or mood elevation. Strong disappoint because I'd hoped this would be a nice pick me up that would help w/ busy days. I'm going on 6 hrs since I took my last pill and I'm yawing and feeling pretty unmotivated. Maybe the feeling I get when using has wrecked how other products affect me...IDK but this was an fail considering the hype behind it.
But it should always be said that what works for you might be different than me. Other have had less than positive experiences on my new supplement of choice so you never know till you try it for yourself. If you can get a sample of I'd still suggest you give it a shot.