Do not use this service, it's a fraud! They only cover minor damages up to a few hundred bucks. We had an accident and they refuse to cover the full amount (5500 euro). After long time of chasing them, they replied to me that usually there is a limited insurance offered by the rental company, and since i didnt have it, they won't cover more then 2200 euro of damage. What they actually say is that their insurance covers only minor damages, but in case of an accident, it wont help you. I wouldn't mind it if that was what they initially offer. The problem is that on their website they publish their coverage is up to $100,000, so you are fooled to think that all is covered and you can be worry free. Save yourself the stress and use the rental company's insurance.