I have Waze, Google Maps, and Navigator in my phone pero I prefer my car's built-in GPS (AVT).. Hassle kasi dati nung phone pa gamit ko na pag naliligaw ako I had to pull out my phone, turn on the gps, turn on the app, key in my destination, plug sa charger, ikabit sa car mount and wait for the phone mag-lock sa satellites before I can go. Tapos biglang tatawag or magtetext.

Whereas sa built-in, I only need to press a few keys and pwede na sumibad in a few seconds since mabilis mag-lock sa satellite.
Only disadvantage is kailangan pa maghintay ng updates from AVT.