I like how easy it is for me as an employee of nAuto (at least so far) from logging into my account at home or work using any device that has internet access via wifi/3G etc., all this can be done while sitting anywhere around your house without being tied down by cables! It also helps with keeping track of what needs servicing when working out where we are up next week during our weekly meetings which include checking service times if they're not already entered onto someones phone then adding them ourselves.
The only other thing i dislike about NAuto currently would have been having more options within each dashboard such as different views showing you multiple routes taken.