My wife and I will both enter an address when we are using map apps while driving. She will use Google Maps, I use Apple Maps. We then compare which gave us the most accurate directions. Apple Maps is around 85%, 90 if you count being within a block as close enough. Google is around 70% using the same criteria. We live in "flyover country", and are probably in the 'not updated frequently' category for most mapping companies.
I own a 2012 Camry, which has Toyota's Entune navigation and entertainment system. It was (is?) a joke. I quit using it because it uses your phone for data, if you are using voice recognition it still uses data, even to play music stored on your phone, is inaccurate as hell with voice recognition which makes trying to tell it to play a song/album/artist an amusing trick to show your friends but an aggravation if you are seriously trying to use that feature. It also can only run 3 or 4 apps total, and certainly NOT a different map system. The Toyota nav system is DVD based, and costs over $300 to update, and being stored on a DVD it is obsolete from day one.
Now as I said, I haven't used it in over 18 months, so things may have improved, although if there are updates I have not been notified, and as I get lots of texts and e-mails directed at me by Toyota because I own the car, if there is an update you think they could notify me.
So I am interested in this system (won't say I would buy it without trying it however) and I would like to know more about the system and what cars it can be added to.