I run Ubuntu Linux 12.04. This camera works "plug-and-play" thanks to the UVC driver in Linux, similarly to the Logitech C910 and C920, each of which I have experimented with. I replaced my C910 with this camera for two reasons: the improved mic & support for in-hardware video decoding.
The UVC H.264 encoding technology, when software can take advantage of it, is amazing. Currently, the state of the world is such that not much software actually does take advantage of it. For example, I primarily use the camera with Google+ Hangouts, and for that, it does not make use of built-in H.264, so still needs to spin my CPU doing encoding in the browser plugin. But if I use Skype, the H.264 support does work, and my CPU usage is under 5% when doing an HD Skype video call.
This camera had two really nice touches. One was the manual lens guard. You slide across the top and the lens is covered. This is nice to keep the lens protected when not in use, and for me, especially when travelling with the webcam. The second nice touch is support for a tripod mount. I have a professional Canon tripod I use for photography that I am now considering using for livestreaming / recording events using this camera. I imagine this will work very well & in an excellent form factor.
Overall, though the price is slightly steep, I couldn't recommend this camera more highly!
Logitech Webcam C920-C (LFB-Sku)