This review is from the perspective of the user of an old Silva Type 4 baseplate style compass (over 30 years!). I am impressed by the improvements made to compasses in general, but this is a real gem. The global needle really makes walking/hiking/etc easy while using the compass, as there is less of a need to really hold the base level. The needle just freely swings without any hangups. The built-in declination adjustment is very nicely done: a micro screw driver (on the lanyard with the compass) makes the adjustment from the back side of the compass. It stays put. If you're hiking the AT, then you'll need to make a few adjustments during your months of hiking, but otherwise, most people will likely leave the declination as it is for long periods. The built in inclinometer is nice and truly functional. The mirror system with notches at the top AND the bottom is a great modification allowing for easier sighting. The notch also allows altitude measurements in the field (height of trees and mountains), as long as you like doing tan calculations in your head... or carry a slide rule or pocket calculator with you. Good compass. I like it, and recommend it.