Purchased insurance, but they still tried to upsell.

The car model did not match the one booked.

1. No Chinese service; 2. The Black customer service agent naggingly recommended a $100+ one-time toll pass. This is a rip-off. Highways in the US are not tolled; when I took a bus from Los Angeles to San Francisco a few years back, I only paid $2.5. I rented a car to return to Los Angeles and didn't pay any tolls. This $105 card is non-refundable if not fully used, don't fall for it! 3. The airport shuttle bus service is terrible! It took me 4 minutes to return the car, and when I went out with the ticket to the airport shuttle, the first dedicated shuttle driver was rude and didn't let us board, asking us to wait for the next one. We waited almost an hour for a shuttle, which only allowed five people to board, and we had to squeeze on as our flight was about to take off. During the wait, we saw the neighboring rental company had 3-4 minute shuttle intervals, with over a dozen shuttles passing, while we had none.

Wide variety of car models, vehicles are very new.

They kept insisting that I buy additional insurance because the other party didn't have third-party coverage. I ended up buying it. The Chevrolet TAHOE was really hard to drive—no power, slow acceleration, not much space, with around 80,000 to 90,000 miles on it. The car got scratched in an LA parking lot. Luckily, I had purchased scratch insurance. After driving the Tahoe for a few days, there was an issue with the oil, so I switched to a Nissan Armada. The Armada was much better—more space and it had 4WD, also with around 80,000 to 90,000 miles on it. I would suggest not renting a Chevrolet. Driving it for 5 to 6 hours is really exhausting.