when it work , it be terrific . Problem be that it be inconsistent in pick up GPS satellite . I start my run from the same location every time and the 201 vary in its pickup of signal even though it be the same time , same location , same weather . some day it work without a hitch -- and on other day , it will not pick up a signal even though it have no problem the day before . it will drop the GPS in the middle of a run in inconsistent place -lrb- again , I generally run the same route -rrb- , and when it finally pick it up again it can misjudge the mileage by up to a half-mile . I know it be not top-of-the-line , but I would expect a company with Garmin 's reputation to provide a better product . I be hope the 205 do a better job .