Good prices, and free shipping on 20lb. orders. I would have a hard time with the profit margins at those prices, even with green coffee being relatively low right now.
But to answer your question, no I'm not familiar with them.
They look fine but they only offer very dark roast which would be good for espresso.
Maybe you want to email them and ask if they have any good espresso blend.
When I visited a friend and ask him of the coffee beans he had in his coffee shop, he told me about Kaldi. He told me that you can have a 20 pound minimum coffee order and can be shipped for free.