As mentioned previously, my old car was one of the cheapest new cars from 8 years ago, so it didn't have any fancy features. Suddenly I now have an electric car with onboard navigation on a huge tablet, which is something I'm still trying to get used to.
On the surface it sounds like, if I already have this on google maps, why would it make any difference having it on your car? I think people underesitmate the difference this makes. Let's say I use google maps on my phone. I get in the car - I have to unlock my phone first. The part where you navigate to the address is similar. But then you have to clip the phone to your dashboard. Then you have to make sure your phone is connected via bluetooth so the sound is coming out of the car speakers. There are just too many steps. It's much easier having an onboard navigation system.
I also find that it integrates well with the other features of your car, such as whether you are over the speed limit etc. can all be informed to you by the same BYD assistant.