I bought a pair of B1 windscreens from them I think. I also got a quote for a VMS5U from them that was lower than anyone else. The windscreens were 30 bucks or so I think, so I wasn't too worried about sending funds. I have wondered though why their price on the 5U is cheaper than everyone else.
It was a couple of years ago, but I paid for and received the screens.
Not sure how much comfort that gives you... but as far as I know, TAI Audio does exist.