The VMC-004XLu

anyone heard anything good or bad about this mixer? seems there aren't any review on the interweb about it, which kind of points downward, but i think it's also a semi-old mixer.

i was really wondering about the capabilities of the usb connection. vestax says that an input can go through the usb to PGM4, but i want to know the interface that it's defined through on the computer side, and the extent to which you may be able to route different kinds of audio from your computer.

any help/input is greatly appreciated :D