I believe there might be a review over at
http://www.swordforum.com do a search for Thaitsuki. The biggest problem most seem tohave with Thaitsuki is the appearance of a considerable amount of deception on his website. Nobody seems to believe any of the various claims of having a trained swordsmith on staff who is apparently willing to sell his work for a tenth the going rate.
If it sounds too good to be true...