Yesterday was the first time I tried it. Basically, I skipped a night's sleep and felt normal the next day. I should've gone for night #2, as that would be a better test. I woke up at ~1pm on Sunday, and went to sleep at ~2am on Tuesday = ~ 36 hours.
My mind felt sharp throughout, but around some of the sleep hours, I was really tired and I felt that if I closed my eyes, I would fall asleep. (probably should up the dosage a little, or take with greater frequency.)
I don't really plan on taking more in the future per se, but it looks like it works without any side effects so it would be useful to have on hand. I can definately see the benefits of using it.
-wit