This is the first time I've really used the nav on my D3 since I installed it on my Mustang. Drove from Arkansas to Colorado and it took me right to the address I was going to. It did great directing me on the Interstates and the exits. Driving around it always took me back to where I was staying, and I only lost the satellite once while going in the Eisenhower Tunnel on I-70. Overall I'm very happy with this!