I saw the video and, judging from previously posted videos, the quality seems to be as expected. I agree it does not look like 1080p but rather more like 720p. Nevertheless, due to the previously shared videos, it doesn't seem you got a faulty or fake unit. The shakiness is probably coming from the way the camera is mounted. Try other mounting solutions (if feasible) to see if the shaking stops. If you decide to return the camera, you might be better off looking for cameras that have proven video quality like the Panorama II which you can get for around £110.