I could only repeat all the great things what are already mentioned by others in the comment section. All of them are true. But instead just bring an example which also just shows his dedication. We asked if he thinks it is possible to make it to the beach on our last day before our flight take off.
He said that he will need to look into it. In the next day he prepared some detailed instructions. As a result we could even make it to the beach on our very tight 3-day Rome trip! Awesome!