We use S&T 2013 with the POI's from the Discovery Forum. Our rig is 13.1 Ft height, so this makes it comfortable for us.
We also connect it to the GPS receiver while we travel, so whoever is the Co-Pilot can check the progress. This also is important while traveling in a new city. This way the driver can keep their concentration on driving and NOT on anything else, as the co-pilot can call out directions ahead of time.
We also use a GPS (in-dash) but we use it as a gauge for how far for the driver.
Recently we are trying the Good Sam Trip Planner again, but only as a planner, we will still use S&T as the primary unit.
With the POI file, we find it has most of everything we need for places.
In traveling we will look ahead for fuel stations using GasBuddy. Once we see something worth while we use use the Satellite View on any one of the internet Map Sources to scout it out.
Smart Phone are good, but nothing beats the screen size of a laptop.