If you're talking about the A.&.S company, I've had dealings with them. Since 1998 I've bought two or three coils, a couple of sets of headphones and a few other items from them. I've exchanged several emails with Sean, mostly about the Millennium II Cointrax Treasure Baron when he first started selling them, and talked to him on the phone a couple of times and he seems to be a nice guy. I never had any problems at all with them, but like most things there's always a first time. They've been around a long time though so they must be doing something right, in fact Sean, or someone with A.&.S, put the first Tesoro forum online at had.com in 1997 and hosted it for a couple of years before another Tesoro forum was put up. Besides me, some other regulars here, Monte, R & R and Uncle Willy in particular, were regulars on the had.com Tesoro forum. By the way, the detector I use the most is an A.&.S Special Treasure Baron they sold, but I bought it used.