I've used Apple Maps for a while now and haven't noticed any real difference in from when I used to use Google Maps. So for me: Google Maps and Apple Maps are utterly interchangeable.
Yup that's also the issue for me. If I know where I'm going (just not how) it's not a problem. If I'm not sure where I'm going (like trying to find a place for the first time) it can be a problem.