Anyone Tried Phenibut?

Has anyone tried phenibut? If so, what were your experiences with it?

Y’know what?..

I’ve used phenibut, 1g before sparring. It was maybe the best sparring session i’ve ever had. I was completely calm thus much more clearheaded and was able to throw lots of combos exhausting myself physically but never feeling pressured. I was much more receptive to my coaches words too, the queues for punches were clear and my response was quick as well.

I love it, but won’t take it more than 2-3 times a year. That is overly-cautious but i dont want to build tolerance