Mine told me to turn the wrong way when I went to visit my daughter in SC. It was pouring rain and pitch dark and I had been driving for 10 hours. Thank God I had Googled a map and I knew it was telling me wrong. I pulled over and looked at my phone and got going right again. When I got to where her house was, it told me that my destination was on the right. There again, I had Googled her house and knew it was the last house in the cove. I pulled in the driveway of the house I thought it was and told Allison to come look and see if a car was in her driveway.
It helped me....but I never totally depend on one. I always Google a map before I go somewhere.