Just got mine yesterday afternoon. Fast shipping!!! I had so much anticipation reading everything here about T-rex, that I had to try it right away. I have never really been a big fan of ephedrine because it makes me way too anxious. So I was very curious to see how I responded to this. I was already aware that it wasn't supposed to effect the CNS the same way that ephedrine does, but I was still concerned. To all of you thinking about purchasing this product, let me tell you, it's awesome!!! It felt like waves of warm water were flowing in my body, my energy level went up (I had to go upstairs to my weights and pump out some arms), I became very alert and sharp mentally and I didn't have that dreaded ephedrine anxious feeling that I don't like. I popped another one about a half an hour ago and I'm feeling that same warm feeling! Thanks for all of the great info on this board. GO GET SOME T-REX!!!