I picked one up yesterday. First of all, its a different looking stick than the one I originally posted, although its called the same thing. It looks like Nuby's Soul Caliber II arcade stick, except its all black with green buttons and joystick handle.
Anyways, It seems to work fine for me. The buttons and the joystick work great on the XBox. The joystick doesn't feel THAT great. But I'm planning on transfering the guts into a homemade housing and using different buttons and joystick anyways.