I think that this route is harder than the given grade of 5.5, there are quite a few short, bouldery, hard bits on it (including a killer 10 m long hand crack). That said, the rock on it is pretty good and usually when you are pulling hard it is usually on good, solid holds and mostly decent protection. Don't get me wrong, there is Rockies rubble on it, but with careful routefinding it is as good or better than some other similar Rockies classics. But be prepared for a long day no matter how you shake it and I recommend a high camp on Neptuak, there is a great bivy corral at 3000m that you can squeeze a tiny tent onto.
Mark Klassen
Mountain Guide