I bought the supplementary comprehensive insurance provided by Zuzuche. At the counter during pickup, they added the car rental company's insurance without even asking, charging over 30 dollars a day. Fortunately, I checked the bill and asked them to cancel it. Although the car was relatively new, it was poorly maintained. The interior wasn't very clean and had a lot of cockroaches. The car roof wasn't sealed properly, and when driving over 60 miles per hour, it made a noise like boiling water.