For the first few weeks after I got my phone I honestly used the navigator every single place I went. Never had the navigation lead me completely astray. The addresses/ending locations seem to regularly be between 2 houses and 1 block off, but assuming you are able to see out your car windows as you drive, that isn't a problem. One time it did advise me to turn the wrong way up a one way access road (I believe it used to be 2-way but went one way after a relatively recent road project). Other than that, it's been an awesome tool.