In reply to New Max:
In condition, it's mainly scrambling on rock, with some sections on snow. None of it is very technical. However how much snow there is can vary. Approach shoes with C2 crampons seems to me to be going too lightweight. How waterproof they are in practice, and how well do they perform with crampons? It may not be technically very difficult but it is a big and serious mountain, and I'd be worried about losing a crampon. You might get away with it if conditions remain good and there's not too much snow, but what if there turns out to be more snow and ice than you expect?
On the other hand the Nepals seem overkill, and are perhaps too warm. However if these are really all you have I would choose them over approach shoes.
For what it's worth I did it (nearly 50 years ago) in ordinary Hawkins leather walking boots (known colloquially as Hawkins Walkin's) , and strap-on Stubai crampons. These had unstiffened soles but were stiffer than approach shoes. Now I would wear B2s.
What you wear on the approach depends on whether you prefer to have comfortable feet or a light pack.