I'd say its very similar to Alpha GPC in that it is calming, yet not stupefying and energizing. I have plenty of motivation, most days, and there seems to be a nice boost in alertness...just not the stimulated sort of alertness I am used to. Its a rather novel sensation and like I said before, pleasant.
I find phenibut to have a sort of de-motivating relaxation, so pica is pretty different. I can take phenibut and go to bed, but I'm pretty sure if I dosed pica in the evening that I would not sleep much at all. I only take the pica in the AM on an empty stomach. I've read lots of reviews about insomnia related to taking it after noon or so.
Im still continuing to vary doses and ingredients every few days and have added Aniracetam back into my mix. So far, the combo works nicely and I have been productive, alert/energized, AND in a good mood..which is like finding the holy grail of noot stacks for me. I have started to dose the alpha gpc EOD to see if that would reduce the sleep disturbances and it has worked. I probably need to find a lower dose alpha gpc product or go back to ordering bulk from BAC.