Car replacement, additional insurance, and GPS service fees

The service attitude is pretty good, but the wait time is still over twenty minutes. Additionally, they couldn't provide the booked car category. We booked a luxury sedan, but they could only provide an economy car. After more than an hour of communication, the rental company finally provided a Mercedes convertible, but there were three of us and the luggage couldn't fit. We ended up accepting a Ford Edge.

Extra charges and taxes are very high!

I have rented cars in Germany twice. The first time I rented an Audi A4 estate, but since they didn't have it, they upgraded me to a Volvo XC60, which was okay. This time I booked a Mercedes E-class estate, and again, they didn't have it, so they upgraded me to a Volvo XC60. Initially, I was a bit upset, but I found the XC60's noise insulation to be much better than the E-class estate I rented in the UK, and it had more space. The interior quality is much lower, and the driving feel of the Mercedes is definitely a class above Volvo.

Hertz is quite popular, so the line was a bit slow. They gave us the same model we reserved, and the service was very attentive.