I feel like it depends on where you are. I used to travel a lot for work and Google maps would be less reliable than Here maps. Kept taking me to unpaved roads that no one used or like dead-ends. It was even more useless in a lot of third world countries I went to. They are really good at navigating around traffic and their POI data is way bigger than any other mapping solution.
Isn’t it already on the stable version? I have been using it on my android v.6.34.5.