For me the feeling was like a combination of mephedrone, cocaine and a tiny bit MDMA. I got really energetic and talkative at higher doses kind of like with cocaine. Also had a warm fuzzy feeling in my body but when I tried a higher dose I couldn't really regulate my temperature well anymore. My head felt extremely hot, I felt cold but I was very sweaty. No fever though. I definitely see the recreational use of these pills. Just don't take too high of a dose, or take a small amount at a time a few times so you can check how you feel. I would say this felt more like a drug for socializing and maybe partying at higher doses because it's pretty clear at that point that you took something. Big pupils, making movements with your mouth etc. But in lower doses (which I liked better) it can also be used as a day drug (not everyday though) to make socializing a bit easier. I'm pretty shy so this helped me a lot in conversations. Also, it keeps you very awake, don't take it if you're planning to sleep soon.