I’m in Europe. I use it as part of Apple CarPlay for all my navigation and I think it’s much better than Google Maps (for car navigation, at least)
I tried using it in Bosnia, once, and it decided to use an abandoned airfield landing strip as a shortcut. Wild stuff.
I frequently drive through Serbia/Bulgaria/Montenegro/Macedonia, and if you ever do, do yourself a favor and install something OpenStreetMap-based.
Otherwise, you will be missing new motorways, get thrown on unpaved roads, or even asked to drive on roads that just do not exist anymore.