This was supposed to be a PD- climb, but that is wrong rating. It is at least a PD+ and the steep slopes/ridge can be very dangerous when in icy conditions. Fixing 600 metres of rope is recommended.
Me and my sherpa summited on a beautiful day. See all pictures here:
Many people have died on this mountain, including an entire team of 11 persons from a German expedition (1994). They slid on the steep slopes and fell to their deaths. The second worst climbing accident in Nepal ever.