I have owned many gps units, garmin hike, sailing, auto, aviation. I love adventure. This is my favorite hiking gps. All I need & want. My location, route, tracks & waypoints on perfect usgs quad maps. Before a big hike, Ill find someones excellent route/track on the web (gpx), open & inspect it in ihikegps and it will always know the on trail distance to either end. And just before the adventure, I email (or now Bluetooth send). The waypoints & map to my wifes gps. For a multiday hike, I take a 3oz battery for a couple iphone recharges.
Rob Atlanta about iHikeGPS : Classic Topo Maps, v4.4