It's legal and cheap in the US. I bought 500g for ~$20 if I remember correctly. Aniracetam is similar and also legal and worth playing with. I have a friend that's into MMA and likes taking aniracetam before grappling.

To cut a few snips from a conversation about it: "more free flowing instictual thought processes instead of frantic fleeting moments when it gets intense.."

" id say no more than a 10% improvement, but i will say i felt invincible on ground and pound days when i got on top, it was just so easy to flow and maintain top position... it seemed like it improved timing and sense of body awareness"