The GPS is a little slow when initiating, taking a couple of minutes on average. This is not a problem in a survival situation, of course. However, it appears to work around the world, having tested it in the US and Asia. Another plus is that it holds its memory while AAA batteries are changed. There is also a clear battery level indicator on the face of the GPS when it is 'on'. This ability to change batteries can be very important if one is in a survival situation in a remote area and the need to put in backup batteries arrives. The main improvement that I would recommend is to have five active location points rather than three. (e.g., camp, vehicle, first significant incident, second significant incident, third significant incident.) It should be clear from the description that these three reference points are changeable.
It is a good feature that the button for turning on the GPS and for choosing which reference point for calculating distance is a different button from the one for storing the GPS readings. Storage also requires a 4-second hold, which provides additional insurance against accidentally erasing a storage point when in the field.
Pros: small, lightweight, 2 AAA, reasonably accurate
Cons: only remembers three positions at one time
This review was written in the old system and had content requirements that are different than reviews written today.