OTOH, if I buy something from the states, I prefer USPS: it's easier for it to slip under the radar at customs, and even it it doesn't you just pay the import tax and vat, not the exhorbitant fees that fedex/ups want you to pay.
Not that I buy much stuff there (it's difficult to find online shops delivering overseas, and if they do the shipping is via fedex/ups costing more than the item): I bought a roomba, the tablet and maybe another thing.
Never had a problem and never had to pay customs.