I got some of this as a sample recently and ended up throwing it away. At low doses I found the experience weirdly sedating. At higher doses there was good stimulation, but also a strange sort of euphoria that I found very distracting, thus negating the whole point of stimulation for me: i.e., to cheerfully and energetically go about my day. Plus when I was up I found that I didn't want to come down, which is usually not a problem for me with other euphoric drugs, but which led to more redosing than I was comfortable with. It's not without its charms, and I didn't feel any negative side effects (in particular, no gnashing of teeth, which is a common effect for me), but overall I just didn't like the way the thing behaved. 2-FA is much more my speed.