My son gave me one that I have yet to install it. An 18 year old girl was murdered in a road rage incident in Phoenix yesterday, it reminded me that it might be good to install mine...and there is the protection that comes regarding liability.
We have the 360 degree cameras in all of our trucks, it has been pretty effective in determining fault.
"Governments may think and say as they like, but force cannot be eliminated, and it is the only real and unanswerable power. We are told that the pen is mightier than the sword, but I know which of these weapons I would choose."~Sir Adrian
I’ve never used one, but I have made short thru-the-windscreen sequences with my phone. What did you want to accomplish with it?
Since it cost less than £30, I figured I'd try it out. What i want to accomplish is wrt what Charlie wrote - liability etc. There are some eejits on the road, and some video evidence wouldn't go amis - especially if obtaining that evidence only cost £30.