Am using it now for my drive trip in southern France. It's plugged into the 12v socket of my rental car. Each video is 3 minutes long. At 1080i and 60fps w/o sound, each 3 min clip is about 430MB. I save it onto a Kingston high-speed card of 64GB - the maximum size that the camera accepts. The camera demands read speeds of at least 80MB/s of your microSD card. But get a faster card, just in case.
I save each video onto my portable hard drive, for memories' sake. The video quality is good, considering the $84.90 I paid (for the grey variant). I just leave the camera in the car, even when parked in less desirable parts of notorious cities like Marseille.
Believe the $69.90 on Qoo10 requires an additional $15 top-up, even for the champagne variant.