I think the Cam relatively expensive and in bad light (eg bright energy-saving lamps) is the image quite pixelated. The autofocus and the automatic brightness adjustment with access to under no apparent reason, which can be a pain. However, all in all, the image of a webcam good and can be compared with images of older digital cameras (3MP era).
Availability: The cam works on Windows 7 64-bit exception always and is quickly ready for use.
Microphone: Just great. Even from 1-2 meters away is the voice sound clear (Tip for gamers who play with speakers and YouTuber especially like me).
I use the Microsoft drivers, including software that brings some gimmicks (Face Detection + object placement).
For the price I might have me night vision, or simply wanted a better image.