Every time the quality of transport services is different, because different drivers have different driving habits, there are different cars, so every time there will be differences in the quality of service
The quality of each delivery service is different, because different drivers have different driving habits, there are different models, so the quality of service will vary every time
The quality of every delivery service is different, because different drivers have different driving habits and different car types, so the service quality will be different every time<br>