When you buy a product, you expect it to work as promised; alas, that is guaranteed in all cases. Now, this camera works pretty much as promised but there are some things to keep in mind.It has great light sensitivity, however if you have dark environment with spotty sources of light (like strong street lights), picture will get grainy; that is just the nature of automatic adjustment to light and not a malfunction.Starting to record, camera will create files for full length of video segments (5 minutes rotation in my case) thus filling SD card quickly (short rides, motion sensor activated in start-stop drive) which results in much shorter total video content in SD card than anticipated.I have my doubts about native resolution this camera has. It advertises full HD 1080P; however, recorded video does not look that way. Some reviewers rightly noted that you can’t read license plate of the vehicle in front of you unless you get really close; that is true and might have been caused by native resolution being really lower. In real world, camera lens has something to do with that, too. Very wide angle on this camera impacts visibility and creates picture in perspective different than our eye (deforms the picture) which some reviewers complained about, too. Yet, wide angle captures situation and development in traffic ahead of you much better. Finally, on video and resolution, standard video players in Windows don’t play high resolution videos of this camera (videos in resolution 720 play just fine) – VLC player (free download) handles these. Checking video details shows that resolution of the video is 1088 lines (?) and that is explanation for this annoyance, but also indicates that native resolution is not 1080P. I didn’t make up my mind and didn’t finish all testing and simulation, but using lower resolution of 720 may have same level of detail in video and would result in better use of memory resources.Bottom line: inexpensive camera, easy to set, and decent performance. These cameras are intended to capture incident situations on the road. Can this camera be 100% reliable in all situations and resolve possible disputes? I have my reservations, but it does not cost me arm and the leg. Read more