Well, numbers are possible to change, the idea was more to show off some stuff we did.
Yeah, I know, and I am very thankful that you guys are even willing to show us this stuff before it has gone through rigorous internal testing.
In retrospect, the +2 INT probably won't make much of a difference for players outside of crafting, as it only affects psi regen otherwise (excluding dialogue and feats because those are determined by base INT).
Crafters will probably get the biggest boon out of the drug, since it will increase the effective value of their crafting skills by 17.0% (8.5% for each bonus point, according to the Wiki) as long as base INT is 4 or higher. In combination with +2 INT Junkyard Surprise (another 17.0%) and the 15.0% crafting bonus of the player crafting benches, this allows for a cumulative effective skill increase of 49.0%. Feel free to check my math in case I screwed something up.
Regardless, I don't expect it to really change the game all that much. I guess you guys should be happy that the only criticism I can produce is a weak one.
Keep up the good work!