It's alright

The attendant at the key pickup location was a bit impatient, which wasn't a great experience. Fortunately, at the car pickup location, the staff were very patient and friendly when answering questions. Much appreciated!

An ABC said we arrived late and claimed our reserved model was unavailable. They wanted to charge us an extra 150 euros for an upgrade. Our English is poor, so we asked if they could speak Chinese. They said they couldn't, even though they were clearly communicating with peers in Chinese. In the end, we still got a Touran. We requested a receipt, but they said they couldn't provide one. Since we were in a rush to another city, we had no choice but to pay and take the car. It was a very unpleasant experience. PS: The store is on the second floor of the central train station, not too hard to find, but the pickup point takes some time.

Renting the car was convenient with no additional sales pitches. They only asked about full insurance. The self-service pick-up was clear and the charges were transparent.

Managed to get a free upgrade from our booking. Excellent customer service. Service staff re-iterated requirement to get vignette for driving into Austria.

Did not check if there's any price drops from my booking date. Otherwise, seamless experience.