When I tried this I expected the normal stuff like itching and eventually a crash but the was no itching, just a feeling of let's go, time to get it done and there was no crash as it wore off. I'm definitely buying more from them.
Looking forward to cooler weather so I can try this as a nice hot pre on my way to the station in the mornings.
Excellent as a hot beverage - I've replaced my morning coffee. I'm a teacher, and it gets me off to a good start. That's just a bonus, though. It's a LEGIT preworkout, which I rely on to power my HIIT workouts after a long day. I'll even use it when I need to focus on grad school homework. 10/10 would recommend