Thanks all for the replies.
My wife never uses the Nav in her current vehicle but loves the HUD with the speed limit indicator. She averages 80 miles per day of around town driving and while her phone is her main Nav when needed, the speed limit indicator is always there as a healthy reminder.
I, like most of you, had completely written off in-car Nav systems...until I got my Tesla. Oh man...it's fantastic. Live Google Maps on the big screen. Amazing voice control. Integrated with the calendar on my phone. My daughter's Middle School changed names this year (it was previously the high school) and sure enough on the first day of school I used voice commands to navigate to it, and Google already had the updated listing. Real time. No annual updates. No highway robbery fee. I literally use my in-car Nav for virtually EVERY trip I take in my Tesla. The real time Google traffic data has saved me more times than I can count.
But back to Ford...