bomber for caving and descent!
much easier in my opinion for descending than the grigri and many other devices. you squeeze the the handle and it allows you to control the speed of your descent (you can get cooking on this thing if you're not careful, i don't mind it though). this is THE iconic caving device, and works extremely well in descent. not my cup of tea for ascending stuff though. overall, everyone needs one if all you do is cave or abseil. i've had good experience with mine.