The process is simple and quick, the cars are very new, and the prices are reasonable.

No need to queue, not many people

The car was brand new with less than 2500 kilometers. There are many locations, and there's no fee for returning the car in a different area within Tokyo.

New car in good, clean condition. If the office can open earlier than 8am will be good as need to rush to catch 10am flight. Office is near domestic airport so need to rush to International airport to return car. They don’t allow to return at International airport

Very easy to book and customer service respond email v fast

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).