None of the subscribers, ever faces any kind of problem while reaping its benefits. All functions and UI (User Interface) are easy to understand. Thus, people can implement any function without any hesitation. Reportedly, new unit from TomTom comes with the latest maps and features but they become obsolete with the course of time. Development and improved infrastructure change the directions and locations of utilities to the large extent. For the same reason, it becomes very important for you to update at regular interval. Never get anxious due to this constraint.