GoPro has been constantly evolving and expanding the capabilities of the Hero cameras. The newest Hero3 has reached the point where it can be used as the ONLY camera on the shoot.
With the addition of the ProTune mode, the camera can shoot a color neutral profile that enables you to color match just about any camera. Add to that the, just shy of 50Mpbs recording rates, you now have a camera that delivers better than many bigger cameras on the market. http://3dguy.tv/my-gopro-hero-cameras-and-cars/