They promoted the roadside assistance service, but it was unclear and ended up costing me a few dozen dollars.

The service was very good.

The queue is understandable, but I paid for Chinese service which was not actually provided. There was a dispute when returning the car as they tried to charge for excess mileage (though the order stated unlimited mileage) and for the GPS device (which was barely functional). I strongly requested Chinese service, but the staff said no one could speak Chinese. After difficult negotiations, they agreed not to charge the above fees, but I still have not received a refund of over 200 dollars!

It took over two hours to queue up for the car after completing the paperwork. The first time, the staff even gave us the wrong car, but luckily the guard stopped us. The most unsatisfactory part was the fees: toll service fees and roadside assistance fees added up to over 300 dollars. Actually, rentalcars.com already provided roadside assistance insurance, dollar rental is just being a rip-off!

I booked a Ford Focus but was told it wasn't available. They should have upgraded for free, but they were unwilling to do so and forced me to buy optional insurance. I mentioned I had already prepaid, but because the receipt was in Chinese, Dollar Car Rental didn't acknowledge it. Unable to communicate effectively, I had to opt for a much smaller car. Very unsatisfied with the service.