Im fairly new to geocaching (only 65 finds) and have an etrex10 but end up using my iphone app as the default. My specific issue with it is reading the map, however, I feel its not the device but me that is the problem. Im not a fan of the small, black and white pixel screen view but prefer the street map view with the iphone. Ive just recently discovered the iphone app has a built in compass so if Im in an area without cell service I switch over to use that instead. Additionally, to my knowledge, the etrex10 doesnt have a find feature based on your current location. Instead, you manually load the coordinates or use the very hand download option from your PC. I am planning to trade mine in at a pawn shop for a garmin nuvi type gps instead. I have downloaded the full manual for more review but any advice from a more experienced user on tips or shortcuts to more effectively use the device is appreciated.