Been using one for a few runs, seems surprisingly accurate on distance – maybe I am Mr Average after all:-(

g/f managed to mess her’s up on her 2nd run with it (pressed the button to many times and confused it), but it reset ok when we popped it into the USB slot.
Still she peeved at loosing that runs satistic’s… the whole reason she brought it.

use it for every run, great product – simple, works 100%, accurate and the system is a good motivator for me. “losing a run” through user error (like not starting it, is actually quite hard to do but I would be hacked to lose a few km of effort. You get quite precious about capturing every km and building up your total.