When I first lived in Chicago, this was _awful_. Even with Chicago's grid system, Google maps would only show like every 3rd street or something--even when zoomed in as much as possible. Not knowing the city, I'd frequently go the exact _opposite_ way intended because I'd incorrectly remember "oh wells st is between these two..." when in fact it was between the two streets on the opposite side I was headed. I'm pretty decent with directions in general, but this often led to many extra miles being walked.