Terrible Experience, Very Upset

The addresses for the pick-up and drop-off locations were completely wrong, making it incredibly hard for us to find them and nearly causing us to miss our flight. The staff member at the pick-up location had a terrible attitude and insisted we purchase additional insurance. Later, we had an accident, and upon returning home, I found that they charged an extra $70 on top of the $444 pre-authorization. This makes no sense since we had purchased full insurance from them! There was also no claim form provided, and the car we got was much worse than a Golf.