um.... all a thief would need is one of those keyed handles. There are only 100 different keys if you read the testimonials. If they had a few of them, chances are they could unlock your wheels and seat post.
Also, aside from the seat post, they really do nothing that a long cable coudn't do. You still need to carry a lock with you to lock the frame anyway, so what's the big deal about these again?
Oh yeah, they only sell it from that website, and I don't buy things from websites that look like that. Sorry, but if someone is selling a product, they could at least invest some time and develop/buy a decent online store, and any place asks to pay via paypal is usually somewhere I don't want to shop. I understand that as a small business, they probably don't have the resources to do those things. But, it doesn't take much to have some better photos and put some thought into the design of your store.