i love it, it helped me focus for longer, i finished by assignment in like 2 days, i can concentrate during lectures. but i only take them when i have to, so like when i need to finish my assignment or studying fro exams etc.., have you tried them?
i tried modafinil last sem for uni, i got my first ever hd and c for others, only take them when i need to do my assignments and sometimes for studying, where was this during my hsc T.T lol