I've had two other dash cams previously. This one outshines them all. No rear view camera is necessary due to the motion detection. I just recently installed it so I'm not totally familiar with the operation. The reason I gave 4 stars is, I accidentally unknowingly, set the language to German instead of English. As soon as you turn it on the first time, you can choose the language. After that, the choice list does not appear. It took me about 15 minutes of experimenting before I got to the selection screen. Other than that, I'm quite satisfied, so far.