I like that you can track your mileage, time spent working as well where they are in relation to their location (elevation).
It is not very user friendly with regards ease-of use or navigation within app itself so it could be better if there was more functionality included such an ability add notes/markups etc from map view which would make navigating quicker when looking at maps easier too! This has definitely helped me understand my own work efficiency by tracking how much i have been driving each day compared against other colleagues - also helps give focus towards areas needing improvement e.