I've used Corian for a few knife handles, and it is fairly shock resistant and durable. It also works very well and is very consistent. It does scratch up pretty easily, but have never had it get damaged by heat - even when I was cutting/sanding it. It also gets brittle if it gets extremely cold - although I've never stress tested it for that.
Overall - I don't like the look of Corian too much. Some haters call it "Mother of Toilet Seat" - and while it is funny, it is also somewhat accurate...
TedP