The waiting time was acceptable.

I returned the car a day earlier than planned. Although I wasn’t expecting it, Dollar proactively refunded me for that extra day—very impressive. Regarding service, the counter staff were fine. However, there wasn’t much assistance during pickup and return; one person just shouted a few things loudly and disappeared, leaving me unsure of what was said. I eventually figured it out after asking for clarification. Part of the confusion was also due to my lack of experience as it was my first time renting a car, and my limited English skills didn't help.

Perfect score.

The car assignment was too arbitrary. There should at least be some sense of contractual obligation.