I deliver pIzza and all of our in-store routing software is tied to Google. It's a good GPS but it gets so much wrong. During rushes it's the job of the managers to route us on doubles or triples and I've gotten routed on badly-chosen doubles (i.e. 3 miles from each other) because Google thought the addresses were right next to each other. Sometimes it's a customer issue, like a typo on the website but most of the time it's Google being dumb.
You can submit corrections to Google and most of the time they accept them. When I delivered pizza in a rural area I had to do it multiple times a week and most were accepted. Helped fix mileage and stopped me from getting lost the next time.