I got this phone two and a half years ago and its still working perfectly. It has fallen into water, been dropped, bumped and knocked many times and still looks good. On hikes, in flight mode GPS is accurate and battery life is good as it is not continually seeking a tower.
I have multiple batteries and many maps on separate SD cards. Will be rooting it soon to finally get rid of Samsungs bloatware. I really like its powerful WiFi and I often use it as a WiFi hotspot or improve my notebooks WiFi reception using the USB tethering. I wont upgrade to the newer actives as they now have non removable batteries and no sd card slot. So when this phone eventually goes I have to look for a different brand to take its place