We've had a good experience with ordering from the Bitmain website. We have shipped it to our data center in Georgia and Iceland. No issues so far. My only complaint with the site is that it is very slow (not optimized for the peak ordering traffic). Also, the payment terms can be standardized. We always need to prepare for any new batch. There is no consistency in terms of what currency is being accepted. Sometimes its BCH only. Sometimes its wire and BCH.

But overall, we are happy so far. We wish we could take delivery in China and arrange our own shipping. It would work out so much cheaper. But that's not possible as of now.