Same here. More than routing preference, I prefer the higher quality display/presentation/resolution of the factory nav and of course the cluster and HUD interface. Gas price and poi overlays have been spot on.I've been exclusively using Google maps prior to GC. I absolutely love the tomtom over google maps. For one, it takes me to better routes (via tollway) and it's much more informative in both duration/issue/camera zones. One thing that i will miss from google maps is user reported speed traps