We use Copilot mostly in France and find it very useful. One thing that would help greatly would be if voice directions could pronounce local place names in the local language rather than in the language of the selected voice.
At the moment the way that Copilot tries to mangle French destinations in some form of bastardised English pronunciation can be quite humorous however it can be really annoying when you can't make out the actual destination especially at complex junctions.
I could switch Copilot to a French voice but then there's the risk of me missing an instruction at a critical point.
This would obviously affect any user of Copilot when using it in a country with a different language to their own.