I teach map reading and orienteering. I tested the Brunton 15TDCC to determine if was an inexpensive compass for orienteering courses. I found it was satisfactory for basic orienteering. Like many compasses however, the instructions are inadequate and do not clearly explain all the features on the compass and how to use them. The compass is reasonably accurate. One thing that is poorly explained is setting the declination which is extremely important. The instructions are for all Brunton compasses but just what applies to this particular compass is undecipherable. This compass sets declination using a tiny screw. A sheet metal screw driver is attached to the compass lanyard but it is useless because the screw is tight. If you think that the screw is to loosen the bezel so that it can be adjusted, you are wrong. What the screw does is turn an inner dial to set the declination but even after it is set, it doesn't help you sight the compass. It is only helpful in orienting a map. There is also an inclinometer inside the dial but no instructions on how to use it. But I like this compass because it is clear lucite and can be placed on a map where you can see through the compass. And it is an easy to read compass.