I got annoyed by how poor Apple and Google Maps were here in Japan so I tried a local third-party app, and the navigation in it blows anything else I've seen out of the water. Just the lane guidance is amazingly good, and it does things like highlighting your destination on the road signs you're looking at

Screenshots: https://c2.staticflickr.com/4/3855/14390588297_f2743d8f05_b....

https://c2.staticflickr.com/6/5233/14573660131_396715c2bf_b....