Why not test happens if you put in properly formatted addresses like
"315 E 15th St
New York, NY 10003"
If you put in a good address iOS Maps finds it.
The map issues peopleare having seem to be a combination of Search results issues (local search when you don't enter in a city name, or a zip code), landmarks, and POIs, but I haven't see an issue yet where a real address entered with the city is wildly off.
I'll concede that right now Google...