A little something for your schnoz, the NozKon is a better but still not perfect nose protector. I suppose these things work for most people most of the time, but mountaineering in general and glacier mountaineering specifically require a little more from a nose shield.
What's great about the NozKon, aside from the clever name: ability to cut down the size for smaller noses, soft material and natural curved shape. What could be better: a little more coverage where the nose meets the face a longer loop for technical sunglasses (you could always cut it down) would be a great start.
Ideally the bottom of the NozKon would bend inward to protect the tip and sides of the nostrils; that would be seriously cool if they could figure out how to make that work. Until the perfect nose protector comes along the NozKon is probably the best thing going, unless you make your own out of duct tape.