Beware of upgrade traps. They mentioned a free upgrade, but it ended up costing money, and it wasn't cheap.

The service provided by the car rental platform is extremely frustrating. When I encountered a problem picking up the car, I couldn't effectively negotiate with the local store and had to consult with the car rental company's headquarters, which takes 20 working days! It's hard to imagine how helpless a tourist feels when they can't pick up their car in a foreign country while the platform does nothing! Nearly 10 days have passed, and the platform has not proactively contacted me, provided any solutions, or given any updates, constantly avoiding the issue. Everyone needs to pay attention to which stores accept UnionPay cards when booking a car. However, the platform now sets it so that UnionPay cards are not accepted, avoiding their responsibility for not understanding the store's services. To avoid losses, make sure to call the store in advance to confirm. Based on my personal experience, at the San Francisco airport rental hall, Hertz, Dollar, and Thrifty accept UnionPay cards, and their services are excellent. Be cautious about booking with Sixt; they do not accept UnionPay cards and deliberately list many low-priced models without insurance to attract customers. In California, you cannot drive without third-party liability insurance, and the store will force you to purchase it for an extra $20+ per day. I strongly condemn such unscrupulous practices by Sixt. Hertz's service is very professional, but the compact car group is not very practical. I intended to book a Ford Focus or Toyota Corolla but ended up with a Honda Brio. I had to upgrade to a Camry for an additional cost, which was quite surprising as the Camry was very new, with less than 3000 miles, and felt like a high-end car. In the future, renting from the mid-to-large car group seems more reliable.

The service provided by Zuzuche is truly frustrating. When encountering issues with car pick-up, it's impossible to effectively negotiate with the local branch and we have to negotiate with the headquarters, which takes 20 working days! It's hard to imagine how helpless a tourist feels in a foreign country unable to pick up a car while Zuzuche does nothing to help. Nearly 10 days have passed, and Zuzuche has not proactively contacted us, provided no solutions, and given no updates. They are constantly evading the problem. When booking a car, make sure to check which locations accept UnionPay cards. However, Zuzuche now marks all locations as not accepting UnionPay cards to avoid taking responsibility for not knowing the service of the branches. Make sure to call the branch in advance to confirm and avoid any losses. Based on my personal experience at the rental hall of San Francisco Airport, Hertz, Dollar, and Thrifty accept UnionPay cards and provide excellent service. Be cautious when booking with Sixt, as they do not accept UnionPay cards, and deliberately list many low-priced cars without insurance on the platform to attract customers. In reality, driving without liability insurance is illegal in California, and the branch forces you to purchase it at an additional cost of over 20 dollars per day. Strongly condemn such unethical practices by Sixt. Hertz's service is very professional, but the compact car category is not very reasonable. I initially booked a Ford Focus or Toyota Corolla but ended up with a Honda Brio. I had to pay extra to upgrade to a Camry, which turned out to be a pleasant surprise as it was almost new with less than 3000 miles. It truly felt like a high-end car. In the future, it's safer to rent from the mid to large-size car category.

The airport shuttle goes directly to the rental office. Just need a credit card, reservation, and passport to rent a car. Very convenient!

After all, it is a big company, very professional, and the efficiency of car rental and return is very high. In the US, renting and returning cars is convenient and fast. The staff suggested insurance but respected the customers' choice.