This standard climb to the summit of a beautiful volcano deals with moderate snow, some mild glacier problems, a few crevasses, and the expected variability expected of such ascents. The last 500 feet is occasionally steep, but snow/ice conditions will have more effect on technical difficulties than anything else. It takes an average party roughly 8 hours for the round trip from the hut.
The ascent is done almost daily. Find the trail leading up to the toe of the glacier the night before, and there is almost certain to be a boot trail once you get onto the snow, leading up to the ridge to the summit.
Crampons and ice axe are generally mandatory. Roping up makes sense although an experienced party is unlikely to belay in with decent conditions.