Get the free stuff and save it for cycle two. Your supplier probably wants you to dive in head first. Be smart about this.
As for a timeline, well for me it was pretty much:
Week 2 - libido, gym stamina, oily and flushing skin, slight BP increase
Week 3 - better pumps, some strength, desire to embrace pain
Week 4 - strength explosion, body acne, looking fuller
Week 5, 6, 7 - same as 4, but strength gains slow down.
It was like strength jumped right around days 26-30, the fabled "10-20lbs overnight on all compound movements" is true. It got hard again to make progress, but there was a jump discontinuity in my strength gains. That combined with the body acne and extreme sex drive is the closest I felt to an "on" feeling. I will say, though, that when I first discovered DMAA years ago, that was actually more of a better workout thing.
I never got a jump in confidence or any of the "alpha" traits, though I did feel more confident last week when I went to the strip club ?