The service was average, and additional fees were charged. After returning the car, I received a bill that included a €24.16 cleaning fee, which was not disclosed when renting the vehicle. I have never encountered this with other rental companies.
A highway toll fee was also charged mandatorily. Although highways in Austria require toll payments, this fee is typically optional—you can decide whether to purchase it at gas stations if you plan to use the highways.

No matter what, the rental company charges a cleaning fee of 20 euros.

Excellent service, great experience

This is the worst car rental company I have ever encountered, whether domestically or abroad! Simply outrageous! I didn't notice the mileage limit when booking, and when I arrived at the store to pick up the car, they forced me to pay an extra 150 euros. Their attitude was arrogant the whole time, leaving no room for negotiation, and they aggressively pushed their insurance options. After declining, they charged an additional 30 euros for highway tolls, yet didn't place any stickers on the windshield! On top of that, when returning the car, we experienced thunderstorms in Vienna that day, making us hesitant to drive too fast on the highway. Furthermore, the return location was extremely hard to find. After much effort, we located the return parking lot, but queuing up on-site delayed us by over half an hour. This caused us to return the car a few minutes late overall. When handing over the car, I explained to the staff on-site that the delay was due to the weather and asked if it was an issue, to which I received a reassuring response: 'No problem!' Only then did we leave assured. However, as soon as we reached the hotel, our credit card was immediately charged 102 euros! Why did they not inform us on-site about the fee? Moreover, the 102 euros included an extra highway toll charge! Absolutely shameless!

Too many hidden charges, including an extra 1000 RMB for crossing borders. Daily limit of 100 kilometers, and minor collisions are at your own expense. It's worrisome, and the return inspection is very strict, even dust is considered scratches, but overall it's okay.