TTK can be temperamental and argumentative. He is from Scotland, is retired, and lives in Thailand. He also makes people wait for watches like I said - but there are cases where people wait many months. A guy on RG just got a watch now after ordering in June. I think because of his sometimes erratic behavior, his poor communications, and personal enmities he was banned on the other boards.
He has improved a lot from my understanding. Nevertheless, one who buys from him should do a lot of research first - KNOW what you are getting into. I went in with my eyes wide open but others sometimes don't - then they complain - and that can just make things worse. If you annoy him, things will go badly.
If you are interested in buying from him, first do a search of "TTK" on the board, using advanced search, and limit the search to the "member and dealer trade review" forum. That will give you an idea of the problems that can come up.
I have bought from him because of his QC, prices, and his legendary status.