What in the world is gano coffee..?

[I_heart_coffee]

I'm new to this site and the search function didn't bring up any direct links that I could tell..So, I've been convinced by a friend of mine to buy some of this coffee that is supposedly next to caffeine free and packed full of anti-oxidants that is made from mushrooms. Now to me it tastes pretty good but I was wondering if anyone had any comments on this stuff, good or bad? It seems too good to be true.. again sorry if this is like a recycled topic