Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Has a fatal design with the power switch

This would be a good GPS for geocaching except that it has a fatal design/firmware problem with the power switch.If you carry this in your coat or pants pocket, its a sure thing that the unit will power up all by itself, drain the batteries, and leave you high and dry.I suggested to Garmin that they change the firmware so that if the unit powers itself up and the power button isn't still depressed after 2 seconds, then it powers itself back down. That would at least keep the unit from powering up from a single jostle of the power button like it does right now.I would not buy this unit until Garmin makes changes to the firmware to fix the power button problem. You will get very frustrated by it as it is right now.