Interesting. Here in UK Apple maps seem to be a barren wasteland, at least up here in the north of England. Anything outside of major cities is exactly how my first Garmin satnav looked circa 2003 - lines going through absolute nothingness. And wow, don't even get me started about voice navigation - it constantly picks a wrong address, like 90% of the time. Google maps is pretty bad too(absolutely zero clue about one way streets or no left/right turns) but at least most POIs are actually there.
I was in Scotland last month, using Apple maps with a rental car, and it was not reliable. I'd look up an address and when near the destination I would get instructions like "park the car here and continue on foot" to waypoints out in the wilderness, for the Helensburgh area. That's not a huge city but it displays correctly in Apple Maps and seems like it should work until you actually try it.
I reverted to the HERE maps app for navigation which worked perfectly, but does not appear to be compatible with CarPlay yet, so I had to use a mount for the phone.
