I use a Garmin GPS. It shows the route as a red line that overlies the road. Over the years, I've learned that turning off the audio instructions is better for me. I just follow the map. Often, the voice commands are late in a high speed, complicated interchange and are confusing in that situation. The key is to have a GPS map that isn't too slow to update. Forget the voice prompts and just drive. Put the unit on the dash board in front of the steering wheel so you don't have to divert your eyes from the road too much. If your present system is quick enough to get the job done when you need it, you're OK. I'm keeping my cell phone for calls, not navigation.