Pretty much every day for the last two years. My Android phone is my satnav. It works. Faultlessly.

I have used my android phone for turn-by-turn navigation, finding transit, restaurants and other POI, translating foreign-language signs, etc. making me a pretty independent world traveler in Tokyo, Hamburg, London, Milan, and Paris. I have rarely had any problems with their location-based features.

It was fine for me in Amsterdam and London.

They work for me fine in Melbourne (frequently) and Madrid (though I have used it sparsely there).

Europe's a piece of cake. Try Asia...

I can't say that I have. Granted, there is a huge amount of territory in the United States that is neither San Francisco or New York. And as much as you or I may not like it, it seems pretty clear that Google primarily targets the United States for new features. (Given the crowd-sourced nature of their traffic data, I would venture to guess that it's partly because of legal issues).