The option to return the car at a different location is very convenient, especially since both the pickup and drop-off points are at the airport.

At the Christchurch International Airport branch, even though I bought the super full insurance, they recommended a deposit-free direct compensation for up to 2500 NZD with a 300 NZD premium, which I didn't opt for. Also, I purchased the fuel-empty return option in Queenstown but felt it was overpriced; they charged 135 NZD while the fuel price was 1.98 NZD per liter.

It's okay

Both pickup and return are self-service, and no one inspects the car upon return. It’s very fast and convenient. The store's location is also very prominent, right next to the baggage claim area at Christchurch Airport. My only minor complaint is that the store pushes various services aggressively. I ended up renting snow chains due to their persistent selling but didn't use them at all.