Pros: I liked the prices quoted on the intenet when reserving the car.
Cons: They tried to force me into insurance at 5 times the rental car rate eventhough I explained my credit card covers the insurance. Then they didn't have the car I reserved, so instead of upgrading me for free, they downgraded it and would not lower the price. When they realized I was not going to take the outrageous insurance, they tried to get me to cancel. When I returned the car, they tried again to get more money saying I didn't return it with enough gas. More issues but.... Avoid if you do not want to begin and end vacation with hassles.
Cons: Not National's fault, but the insurance cost more than the car so the overall cost was much more than same deal in the US. I knew this going in, but if I hadn't done the research, I would have been outraged.