Recommend

We returned the car late at night and paid the deposit in cash. They didn't return the cash deposit then and asked us to pick it up the next day. However, when we went to get it, $20.0 was missing. Due to the language barrier, we couldn't figure out why and didn't have time to ask.

Completed car rental in 5 minutes, very convenient through the machine

Excellent! Very convenient! No forced upselling. Just went and got it done, no waiting required.

Returned and picked up the car at Auckland Airport. Small airport with fewer people and even fewer cars to choose from. The so-called 'free upgrade' is basically based on luck; you get whatever car is available. I didn't encounter any Chinese service, but my English is fine. Both pickup and drop-off are self-service, very convenient and straightforward.