As a matter of practice - and prudence - I avoid, like a plague, anything shipping via any method/means that cannot be "seen" or "tracked" through USPS, Fedex, UPS or DHL. If a shipper gives you a tracking number that never shows up anywhere until the item shows up in your mailbox after one and a half months, what use is it? Chinapost and many other standard, reliable and reputable mailing systems interface with USPS allowing buyers to track shipments in the system. You get the point.
