The built in navigation works really well about 95% of the time. Part of my job requires me to drive to appointments. I can count on 1 hand in the last 1 1/2 years that I've owned the car that an address wasn't listed. It certainly beats a phone, suction cupped to a windshield, with a wire hanging from it. The dynamic guidance is helpful to avoid traffic or other travel impediments. It has been worth every dime I paid for it.