I found for the most part I loved Nootrol's effects. I experience a dramatic increase in motivation on this product, as well as a nice sustained energy throughout the day. I do experience one negative side effect from time to time which I really don't care for. Typically, I wake up once overnight to urinate. This generally isn't a big deal, I just go right back to sleep afterwards. However, after several weeks of sustained use of nootrol, when I wake up overnight to use the washroom my brain immediately kicks into overdrive, and it can take me several hours to get back to sleep. The next time I use Nootrol I'll have to experiment with dosing schedules to see if taking the second dose earlier in the day can help to alleviate this issue.