We arrived at HERTZ earlier than the scheduled time, and the reserved car model was not available. The staff said they could only offer an electric car or a manual transmission car unless I paid double the order price for an upgrade. I declined and decided to wait. After waiting for nearly 2 hours, another experienced staff member managed to provide me with an SUV one size smaller than what I had reserved. I had booked a small SUV, which was supposed to fit three 24-inch suitcases in the trunk, but they gave me a compact SUV that barely fit two 24-inch suitcases. After placing the luggage, there was barely room for even a large bottle of water in the trunk. Having rented cars internationally five or six times, this was the only time a rental company downgraded my car model. The service at HERTZ Heathrow Airport branch was really disappointing. The car itself was in good condition, quite new, with only a few thousand miles on it.

It's advisable to buy car insurance when you rent the car, as it is more expensive if you purchase it upon picking up the car in London. Also, it's not recommended to buy fuel when picking up the car (80 pounds) unless you are only driving in London, as fuel is cheaper outside of London.

I rented a car for two weeks this time. It was my first time renting a car in the UK. Hertz was quite reliable. I originally wanted to rent a Juke, but since there were no cars available, they upgraded me to a Mercedes directly. Returning the car was super fast. I was supposed to return it on the morning of October 12th, but I was worried the return process would be complicated, so I returned it on the evening of the 11th instead. The return process was incredibly fast. Not sure if it was because I bought full insurance. I asked if there would be any additional penalties or fees, and they said no, all done. I hope there won't be any extra charges later. Overall, I'm quite satisfied.

Hertz is located a bit far, but there's a shuttle bus which helps. I came from Terminal 5, the queue was short in the morning, and I got the car quickly. The service was alright, but they recommended too many things. You need to say No to everything, especially when they emphasize that fuel prices are cheaper than the market. If you ask whether you can get a refund for any leftover fuel, they say no. I almost got fooled. It's hard to return the car with an empty tank precisely. Also, after getting the car, carefully check its condition. I found a few scratches that weren't noted in the inspection report, so you need to inform them yourself.

They tried to charge more for changing a new car. First they said free offer then put extra charge on it