Very friendly.

They upgraded us to a larger car and charged extra. The staff at the store said the originally booked car was very small and couldn't fit two pieces of luggage. There was no car available when we arrived, so we waited for a while. The car was spacious but felt bulky, and the steering wheel was heavy.

There was a shuttle service from the airport, the staff was friendly, the waiting time was reasonable, and the efficiency was high.

Waited 45 minutes for the shuttle from the airport to the car rental company and another 2 hours to pick up the car. There were too many people, not enough service counters, and it took a long time.

During this trip to the three Hawaiian islands (Kauai, Big Island, and Maui), I rented cars from Dollar. The rental locations are very close to the airports, and there are plenty of shuttle buses, making it very convenient.