I've given this 5 stars as it does exactly what it is supposed to do, have not fitted reversing cable yet, as not had time, but as everything else works, I cannot see that there will be a problem, plus the fact the reversing part of it is just a bonus, this was bought for the front and rear incident recorder capabilities.
Playback on the camera is good and clear, battery life may be limited but retains enough juice to do quick looks and adjust settings.
Was disappointed that the playback of the rear video kept breakingup/pixelating, when connected to PC, as the playback on camera was clear and even when I put the microcard into a Tablet, it again played clear, so I thought it must be a cable issue, anyway had a flash of inspiration and tried a different media player, and the playback was clear, I was using Windows Media Player, but got the good result using the VLC Media Player, so was no problem with the cable from camera to PC.
All in all this camera looks promising as I had to send another one back (different camera, different seller) so it just remains to be seen how long it will last, if I get the chance I will try and upload a couple of videos later.
Update...Seems you can only upload one video at a time, I had uploaded the forward facing camera view, then uploaded the rear, and only the rear has loaded.