I personally used it as sexual enhancement during a 3 day sexathon.
It tastes chemically if it drips down your sinus into your mouth. You don't swallow it. You either snort it or vaporize it, then smoke it. It burns quite a bit if you snort it.
I lost a lot of weight temporarily mainly through dehydration. I would have zero appetite and nearly no urge to consume fluids.
It sent my sex drive through the roof. The sensations were so much more intense it is difficult to describe. When I finally blew my load, the sensation was otherwordly intense. I fucked and jerked off so much that after a 3 day bender my penis was red. For the next few days the outer layer of skin sloughed off from all of the friction.
I felt completely frightened at the end of the three day bender when I started considering how little I ate and drank and slept. The crash was horrible. I spent a week depressed, anxious and completely social phobic. I wouldn't answer my phone even. It didn't matter how well I tried to reason away the depression, anxiety, and phobia. I got an almost uncontrollable urge to get drunk every day for three days to deal with the anxiety. I would advise against doing it unless you are prepared to deal with the week long crash.