Though it takes quite a bit of stamina and endurance, the climb is more like a very steep walk. Only a few times does it get to a point where you use your hand to steady your body for the next step. Otherwise, you're on your feet the whole time using the ice axe like a cane for balance and support. More exhausting than the climb, I think, was the lack of sleep. All that fatigue passes away as you inch closer to the summit.
Nothing compares to the view from the top.