If you travel, you can ask him what needs to be improved in our service, how the route feels, whether the time is tight, how much time to go to the scenic spots and so on. If it is something else, you can ask what it feels like to use it or ask if you have gained anything after the trip. You can also ask when to travel next time. You can consider going with him.
The answer is for reference only, and everything is subject to actual action.