From the reviews I have read and opinions I got in my insurance thread, some say bad idea, big brother and all. Several reviews said hard breaking cost them any discount. Some got up to a 30% discount, most were in the teens, 15% to 19%. Although they say they don't track speed they do track time and distance, as well as breaking and time of day, so an average speed is easy to figure. For me I drive my patrol car most and almost never drive my Tundra or Jeep, very sad really, but I think it would be good for me. For those drivers that can take their time, use caution when out and about with regards to stopping, and don't mind the monitor it might work in your favor.
2014 JK Anvil Rubicon
If you eat, drink, or wear cloths then you're involved in agriculture.