I haven't experienced any problems with Apple Maps yet, in various US cities. I downloaded the new Google Maps last night for comparison. I definitely prefer Apple's cartography and the app interface. The turn-by-turn experience is nicer on Apple, and I also like the OS integration and Siri integration. For my preference, Apple has created a much better looking and functioning maps experience. That said, Google's POI accuracy and detail level is more mature and reliable. I'll keep using Apple Maps, and if I'm going somewhere super important, I'll probably at least check the destination accuracy against Google before leaving. If there's a discrepancy, I'll use the Google app. I do believe Apple is working hard, and that they'll tighten up their accuracy quickly, and that people will become very confident in their maps.