TallHacker - 7/21/10 Works great most of the time, occasionally I do run into a course that the distances aren't 100% accurate. However, I get quick replies via email when I notify them of the error. Other than that, great unit, like the color screen, easy to see even in sunlight. Battery life is great and I like being able to download new and updated courses for free with no subscription. The software is very easy to use as well.