I purchased it in India. for Rs 2000.

Pros

The quality of the video is very good.

Adjust light when the room brightness is low( I like this very much)

Availability of MIC.

Auto focus

the LIfecam sofware have some funny frames that you can use.

Cons

Bit costly when some one goes for a separate webcam.

Description from MS website

Sharp video with Auto Focus Get the HD webcam features you need to share each moment as it happens—at a reasonable price. The LifeCam HD-5000 offers a 720p HD sensor and automatically sharpens your images with Auto Focus, while TrueColor adjusts exposure for bright, vibrant footage. Plus, the widescreen presents a remarkably cinematic feel, right from your desktop or notebook PC