Has anyone seen these guys before?

http://www.teahub.com/puerhtea.htm

Seems to be a tea company out of Yunnan. They posted something on
teamail the other day, indicating that they "now" take retail orders
from North America. Inquiring about a price list, they responded
promptly (overnight), and the prices on their tea seem somewhat high
($50 for young green cake to $1000 for top 1952 bingcha, some grades
of loose pu-erh are more reasonable). Oh, yes, and shipping is high:
$10 per kilo, and you pay shipping for at least 2 kilos.

Has anyone out there had any experience with these folks?

ZBL