I use both Google Maps and Waze, and have used a third app in the past, called Sygic. I think all work very well and have their own ups and downs. I found that maps does a better job at showing traffic in real time, but sometimes I’m having trouble with the GPS signal. Waze, on the other hand, works perfectly fine, but if other users don’t ‘alert’ the app there’s traffic or an accident ahead, there;s no way you can know about it.
Anyway, so far so good. I just wish they had an app for the limited traffic zones!! It’s a hassle having to go around them in a city you’re not familiar with