I just gongfu'd some (an entire 10g). First infusion last night, second today. Dang, that stuff is bitter! I have absolutely tasted it in pu erh before--it has a very distinctive flavor.
This is supposedly top quality kuding from Hainan. I used way too many nails...I won't let it happen again!
It really is keeping me cool in the heat, and makes me feel 'light.' it's quite tasty aside from the bitterness.