My HOTUSB1 arrived this morning: perfect packaging and quite fast shipping btw. It worked flawlessly and everything was ok, even if a quick look inside showed a construction far from, er, neat.
But it is fine: a quick comparo to my three references here showed it has less hiss than the M-Audio Transit and the (noisy) Yulong DAH1Mark, but just a tiny bit more than the Behringer UCA202 (almost totaly silent). This, using the really very sensitive Shure E500s (if you cannot hear hiss/hum with them, the thing is VERY silent!). The UCA202 is a bargain but the sound quality out if its hp jack is no exactly stellar, and as far as I have seen (well, heard) by now this HOTUSB1 is doing well.
More to come...