Another link on B&B about TB:http://badgerandblade.com/vb/showthread.php?t=157154
They were trying to arrange a group buy, but at the end, I think they went their separate way. However, there are some interesting discussion about fake and interesting suggestion. I think the best buy in term of quality of tea per price from the list on the B&B link is the Dingxing.
TB focus is very easy to use and I think the fee they charge is very reasonably.
If you want to buy 2009 Douji or Hailang Hao, I don't think you can get cheaper deal than YS, however for older Douji, TB will give you more choices and much much better price than DTH. I would not recommend to buy anything which is very old from TB.
Hope this help.