I have a GPS 12. Great little unit for geocaching. The buttons are nice and big for manually entering waypoints. Keeps the signal a lot better than some of the newer units under the canopies of trees. My major drawback on the GPSr is that it never goes to ft when your approching the WP. Modern GPSr switch when under 1000 ft. In addition it slightly bigger than newer units and take 4 AA batteries instead of 2. Mine is not WAAS enable, but not sure about the XL. Overall, the GPS12 is a great unit.