I've bought it. Its a good and cool dashcam, but a little "hard" to setup it at first time. I'm using a 128gb TF card and, so far, it's working.
BUT, there's only one thing boring me: sometimes it starts rebooting (in a looping), so I have to unplug 12v cable and plug again. I contacted DDPAI "support" by mail but no one answer me. At Facebook (chat), they asked me to send a video of it but i haven't recorded yet.
Maybe with a new firmware this "issue" will desapear, but I don't know it they'll do it. Last update was on April, 2017.