Out of nowhere, they requested some number, and even after calling the car rental customer service, they couldn't figure out what number it was. It took more than half an hour without providing any number before the rental was completed. I still don't understand the whole situation!

I hope everyone can be punctual. Arriving on time at the counter will be quick, usually within 15 minutes. The counter staff is friendly and not verbose. Once asked if you bought full insurance, they won't recommend it again. I walked from the long-distance train station to terminal 1 to pick up the car. The route is a bit long, but there are many signs. If you plan to go to another country, be sure to mention it in advance. It should be noted on the receipt and the fee charged. Otherwise, you need to find a Hertz location near Germany to add to the contract before leaving the country, which can be inconvenient.

When renting the car at the store, the staff's attitude was acceptable.

Overall, it was pretty good. However, I was later unexpectedly charged multiple times without clear explanations. It's probably for some traffic violations, but there should at least be some sort of explanatory email. The bank couldn't provide any details.

I reserved a BMW 3 Series but was given a BMW 5 Series Touring. It's a diesel hybrid, comes with navigation, and can display the speed limit on the dashboard with the vehicle's LIM speed limit function, making it very convenient to avoid speeding. The upgrade was great...