Best 200 I ever spent. It records a 4 hour or so loop and then starts to record over itself. Any crazy shit goes down I just tap the button and it downloads it to my phone. Then I can upload it to YouTube or send it to the police.

I also have used it to get out of an insurance fraud case where a new york driver and his wife lied to the police about crossing into my lane and hitting my vehicle. I showed him the footage on scene and he wrote them a ticket, and I used the footage in court, and got my brand new 60k truck totalled and replaced no questions asked from their insurance company.

If you don't have one, depending on the state, it's your word against the other driver, and the insurance company will just do what saves them the most money.