The car model I reserved was unavailable, so I had to pay extra to switch to a Sonata. Since my English isn't very good, I couldn't negotiate much with the staff. The additional cost wasn't significant, so I just accepted it. The car was new and in excellent condition. I wasn't very familiar with the routes, and after returning the car, I received a credit card bill. I'm not sure if it's for a traffic violation or toll fees, but it was quite expensive, nearly $200, which is almost as much as the rental fee.