I do that regardless on any app I use. I need my guidance to be as flawless as possible, so I only have to quickly glance at the phone if there is an upcoming turn. What I dont want is an app telling me to make a U turn when I know the route is straight, and was straight when I proofed it the night before - which has happened a number of times with Scenic. I am planning on pushing my map apps hard this year, because I need to find a "best (for me)" app that allows easy route importing, offline maps and can jump continents. I want to hit the road full time in the next 18 months and spend the 3-5 years after that seeing the world. I need something reliable for that without going for an external GPS device.