AS AN INSURANCE BROKER I WOULD RECOMMEND THAT YOU BUY THE INSURANCE FROM THE RENTAL COMPANY. IF YOU HAVE A CLAIM WITH THE RENATL CAR & YOU USE "YOUR" INSURANCE, IT WILL AFFECT YOUR POLICY WHEN YOU COME BACK. IF YOU BUY THE INSURANCE FROM THEM, IT WILL GET TAKEN CARE OF & IT WILL NOT AFFECT YOUR INSURANCE HERE IN CANADA. ALSO, ALL RENTAL AGREEMENTS ARE DIFFERENT SO IF YOU HAVE A CLAIM & USE YOUR OWN INSURANCE, DOWN TIME FOR THE RENTAL CAR AS IT IS GETTING FIXED MAY OR NOT BE COVERED & THIS CAN BE COSTLY TO YOU IF IT IS NOT COVERED. IF YOU DO GET THEIR INSURANCE, JUST WATCH THE LIABILITY LIMIT, MAKE SURE YOU GET AT LEAST A 1 MILLION LIMIT. LIMITS IN THE STATES START ANYWHERE FROM 15,000 & THAT IS NOT SUITABLE FOR ANYONE. HOPE THIS HELPS