I assume you're using Tesla. Do you live in one of their core markets? I doubt Tesla Maps or whatever it's called holds a candle to Google Maps for non-US, non-Western Europe regions.
No, it's a Skoda. I mostly just use the navigation which is very usable, plus with a subscription you also get live traffic. There's a few things which annoy me about the infotainment but that's inherent to the whole system (like annoying popups on boot), so CarPlay doesn't fix that.
One good reason is that your phone, or rather the account tied to your phone, already keeps all your favorite destinations.