1. If you don't buy insurance from them, you'll need to pay a deposit (around 20,000 RMB). 2. Be sure to inspect the car; any pre-existing minor scratches will be counted as your responsibility otherwise. 3. There's a daily limit of 95 miles; unlimited mileage costs around 8-10 pounds per day. 4. When calculating the cost, they overcharged us by 50 pounds, and reclaiming it requires contacting their company. We haven't received it back yet. 5. The final amount you pay will definitely not be what you initially saw on the rental site.

The longest wait and an error on my part cost me 4 times the original quote but there was no compromise on their part.

The ACE is not the real agency, but Green Motion, this resulted in an internal problem that made me wait more than 3 hours to get the car. I would never again choose this agency because of this, which should even be said before booking.

Being made to wait so long to pick up the car detracted from any positives like the car being brand new. Not a fan of mileage caps on rental cars so will think twice before using again. Pick up location is not at Heathrow airport.

Like: The Customer Service Advisor Danielle provided excellent service and was very friendly. I would definitely recommend Ace Rent Cars/Green Motion because of her. thank you very much Danielle.
Dislike: Long waiting time to pick up but mainly because customers did not find out about company's policy before collecting car.