Triple posting! Ahhh! 
Okay, I have definitely tapped into what Alseides pointed out as the duality of this molecule. Sometimes it’s one thing, and sometimes it’s another thing entirely.
Today, it acted as an intensifier, much like the descriptions I have read of P79. I megadosed–62.5 mcg (two 12.5 mcg sprays to the neck, two to the “devil horns”, and one split between the wrists) and was in a very good mood on the way to work and for the first half hour of my shift–until I received a phone call from my mother detailing computer trouble that made me very angry (the Dell guy was supposed to call me at work to make an appointment–my mother returned home from dropping me off to a message on the machine that he would be there in 15 minutes when I specifically said I would be at work) and I was LIVID for the next two hours or so.
LIVID.
My co-workers thought I was going to rip someone’s throat out. I normally would have been pretty pissed about such a screw-up, but not that furious.
Then, later, I turned into super-focused girl. We got really really busy, and I went into hyperdrive and didn’t forget a single detail.
Then, later, I was peppy again.
And, most notably, no real crash–although I did have three cups of coffee at work today, after having a full mug before I left the house.