The process of picking up the car at Christchurch Airport was quick and efficient. The car was new and performed well without any issues during the 15 days of driving. Pleasant experience! When returning the car in Picton, I didn't know about the drop key box method and couldn't pay the rental fee in cash as intended, had to use a credit card instead. Hence, couldn't use up the New Zealand dollars I had exchanged. Picton, being a key hub between the North and South Islands, should have continuous on-site staff like in Auckland, Wellington, and Christchurch.