This stuff had a really weird effect on me. I went from sleeping 10-12 hours a night and not being able to wake up to waking up every couple of hours. I could go back to sleep once or twice, but I would wake up after 5 hours of sleep. Then I would feel more energy than I usually do, but it would wear off quickly and I would be soooo drained and tired like I had stayed up all night, and sleep another 4-5 hours.
I also kept feeling like bugs were crawling on me. In fact, I'd wake up panicking, thinking there was a roach on me. It was really weird and not fun...
BUT it definitely did help my depression. I stopped it though because I couldn't deal with the side effects.