THe thing with Modafinil for me, I dont really FEEL it. I find this as a positive because I dont want to be all jacked up sweaty and jittery more than I already am. It just makes me feel not tired, lol. Sounds dumb but is crucial when I have to study a dumb amount of Anatomy, Pharmacology, do lab work, hit the gym, work (occasionally, hard to manage during D school) and have 2 kids. Its crucial when I have to get up at 5am and didnt go to be until midnight, 200mg Moda with a big cup of coffee and I feel totally normal and ready to get after it. And all the shit I get is out India so QC is questionable. The Artvigil has been my favorite so far. If youre looking for a stim / upper this aint it. Looking for something to extend your days, help stave off mental exhaustion, pull all-nighters etc. Afinil definitely works in this regard for me.