Bala and I climbed this route on Sunday.
Great weather, but only moderate conditions. we started on the left side of the slab, trending towards the middle following better ice. most of the route was crust over the new snow. I was fortunate enough to get in 1 piece in the first 60m, resulting in a 150' runout through sketchy snow and not so solid AI3 to the belay. the rest of the route went well. good ice on the second pitch. I'd say that it should still be good for a week or so. perhaps Bala will post some pictures.
for those interested in the south face, there is a large cornice overhanging the approach gully.