Basically no service, you have to do everything yourself.

The drop-off location wasn't specified clearly. The return in Las Vegas was on the fifth floor of a hotel parking lot. The instructions only provided an address, which was a hotel. Without reading other people's reviews, it's impossible to find! Unless you inquire in advance, but who would think the pick-up spot is a yard, and the drop-off would be in such a strange place?! I needed to return the car by 5 PM, arrived at the designated spot by 4:30 PM, but didn't finish until 5:30 PM! If there's a late return fee, I'll need to deal with you guys again!

The return process was very rough, and I was overcharged. There was a quarter tank of gas left, but they charged me for a full tank. They pre-charged for the tolls, then didn't check at the return and just took the full amount, over 100 dollars. I had to go to the counter to cancel it.

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.

The car was fantastic. Exactly as described. Clean and well maintained. Great fuel efficiency. Did not have to fill up before drop off.