Had this the other night, made from the powder straight from Fji. You have to strain it through cloth for 15 mins for it to be effective.
Completely got rid of my anxiety...I wasn't heaps outgoing, just completely relaxed and had such a clear mind.
I also have irritable leg syndrome which is a b****, especially when trying to get to sleep, but the Kava also made it go away completely.
Unfortunately the stuff doesn't last more than 1-2 hours.