Driving through Boston with Apple maps is quite slick. 3D rendering, vector based, with large pop up green street signs and voice nav is super smooth. It's like gliding through the city. Much better than MapQuest and the old google app. Yes I know it screws up with place points and the wrong location. But it worked well in the city and also got me to a tiny out of the way restaurant in the deep country. I like it and am patient with improvements. Plus it doesn't tell me it's rerouting in an irritating voice. It just does it. But the smoothness is super. It adjusts the 3D angle constantly which is very cool.