Good find there. Even though I have a dashcam already, I will give this one a go too as I drive other vehicles for work on a regular basis and I never get the chance to move the dashcam to them.
The only drawback in my own car is that I listen to pod casts, sometimes I use it as a secondary satnav (google earth is great for finding places!) and occasionally I make and receive calls on it. So previously putting a dash cam app on there before used to result in a lot of phone crashes.