No one at the rental company speaks Chinese or English, making communication extremely difficult. We relied entirely on phone translation and guesswork. The prepared driver's license and international driving permit couldn't be used. After half a day of communication, we still didn't understand each other. Fortunately, a lady who speaks Chinese at the mobile card service helped us by calling for inquiries. There is an agency in Saga City that can translate driver's licenses in just half an hour. We took a taxi immediately, and by 3 PM we got the translation document. But we had to wait until 5 PM to pick up the car at Nissan in Saga, which was frustrating.

Miss Hong's service was very thoughtful, and she spoke fluent Mandarin, making communication very pleasant. On non-busy days, there was no need to queue.

Very good attitude

Like: Car was slightly smaller than I expected but not too bad. Extremely fuel efficient so a net positive.
Dislike: The staff didn’t think to include an ETC (auto toll device) even though I asked about it and there was a car reader in the vehicle. For a >2 week rental that should be the default approach. If you are renting in Japan make sure they include it or you will be messing about with cash at toll gates (or worse, finding gates not opening as you expect).

Like: Great service, they spoke a little English which helped!
Dislike: The pickup address in the confirmation email did not direct us to the correct location