Can confirm. Just like "Kleenex" in some places, Waze has become the generic term for GPS Navigation here in Israel. Honestly, I have no idea why people still use it when Google Maps has an infinitely better interface and no ads.
In some areas it has much better traffic routing. All it takes is getting alerted to one big jam ahead of time and you'll use it every commute.
- Waze is a bit more dynamic/aggressive in finding me alternatives when traffic patterns can change due to accidents - "speed trap reported ahead" - the "turn left" direction is better timed than Google, Google will tell you to turn while your turn's still a bit far off, sometimes you'd turn into the street before. - loyalty, Waze was great before Google bought it and used its reports and traffic data, and it's still great even now.
I agree with your Kleenex sentiment, quite a number of people who know their way home, still use Waze for the alerts and reports.
I agree that gmaps has a better interface, at least for routing. I vastly prefer the alternative routes implementation on gmaps (it's right on the map). In waze I need to click through a few screens, which isn't practical when I'm driving. In gmaps I can glance at the map and make a decision without touching the phone at all.
Waze has speed trap warnings, Google maps doesn't.