I've got one. They're good! Just make sure you get the model that fits. The alternative is the Zalman VF-700, which is probably superior t othe NV Silencer if you've got good exhaust fans. If not (such as in my case), the NV Silencer functions as an exhaust for you.
pretty good. Wiring is all bunched in the front toward the drive bays and is pretty much away from the mobo/cards. Have a 120mm exhaust fan and 2 80mm intake fans.