It looks fairly easy to setup and use but can this hurt me? Also, does anyone know how much data they actually store?
EDIT: According to the customer service representative: "Snapshot is a discount only program, so it won’t increase your rate. Depending on your driving habits the discount could reach up to 30%."
This question has been put on hold but as Juann points out you can save $15 a month by refusing this service.
The potential savings of using this are 0-30% of your premium which might be outweighed by the $15 you would save from refusing the service.