I also work in sales and travel quite a bit so I am always renting new cars and I try out the Apple Car Play and Android Auto on every car I rent (I have 2 phones). I always try to rent a new FCA vehicle (300, Charger, Challenger, Grand Cherokee) with the 8.4 radio. The Nav is not bad on the newest 8.4, but I typically plug in one of my phone to test the Apple or Android apps. They both have their advantages/disadvantage. Apple maps is not very good. It looks nice, clean but inaccurate and does not seem to be responsive to real-time traffic conditions such as rerouting to avoid jams. However, Apple will allow you to stream the music player of your choice (I like SiriusXM app).Looking at a new car, not sure if the uConnect GPS Nav is worth it. I am in sales and rely heavily upon Waze, Maps and Google Maps.