Two stories about Google Maps and directions.
One, it told me to take a left off of a main highway near my then new apartment. The problem is that left turns aren't allowed there and never have been. You have to use a clover ramp. When I gave Google feedback, it told me that I was wrong!
Two, it took my friend and I totally past a turn to get to my doctor's office. She was driving, and she has no sense of direction so lives by Google navigation. I didn't know this, so I wasn't paying attention until way too late. We had to circle back through heavy traffic, making me late. We never did get where exactly Google thought the office was.