This is a test drive of a Cowan AW1 das cam I just purchased from Costco and installed in my car. The installation was really easy, but it helped to have read everything I could get my hands on before the camera arrived.
I took a drive through the neighborhood today to try out a polarizing lens in front of the camera lens. It did do a good job with reflections from the windshield. The camera does get hot rather easily and I do wonder if that will cause problems in the future. The wifi was easy to connect to from both my Android phone and tablet. Even with wifi it is still slow to download the recorded files to my tablet. I found it easier to remove the data card from the camera and plug it into my laptop.
The software for the phone, tablet and PC all work well and appear to be very professional. No bugs at all so far.
I read somewhere that the sound was not good. I found it able to record really well and picked up pretty much everything. The speaker is small, so the volume was just a little low from it. If you have a noisy vehicle, you may find it hard to hear.

Photos of the installation will be up in a few days as well as some night activity. Everything so far has been in very bright overhead sun, a difficult environment.