Summary: What you are buying is a Vimicro USB Camera (Altair), according to Fedora 20. The cam works with Linux and Windows. Weird mount, decent picture - quite decent. Even excellent considering the low price. (I always check the xx new from $nnn, often the best price is not the one in the main product page.
Summary: The webcam works fine. The image quality is what you pay for, which is fine with me. My friends can see me over Gmail and Skype. However, the microphone hardly picks up any sound. I practically have to yell for my friends to hear me. Even then, they say I sound muffled.
Summary: You get what you pay,really nothing much to say. The image is what you expect from such a cam. The wire is of a good length. Forget about hanging it from on a laptop using it's functionality, But I can see it can fit a regular desktop screen. The rotation and focus with the base rotation is all good and smooth at least for now.
Summary: Good packaging and arrived quickly. The camera was out of focus and I had to adjust the ring (4 rotations) before it was okay. It does record in color. Compared to an older webcam (circa 2001), the video is noisy (lots of scattered pixels) and is very limited in range. The camera does not intuitively tilt at center, but instead from the base (it is a ball and socket). Also, the camera does not have the typical camera-style mount (UNC 1/4-20).