I have one. I'm impressed so far. I don't have much footage with it yet though. The editing software is pretty rudimentary, but it gets a new patch every couple months with updates. It's still pretty new, so updates are coming.
The switch is really easy to hit even with gloves on, that's a big plus. The GPS data layered onto the video is pretty cool too. I also like that it will take time lapse pictures as video. I've used that as a dash-cam in my car on a couple trips through Yellowstone Park, while testing the camera.
