The device is pretty heavy-
so, i've dropped it a couple times, and twice its landed on a corner with the anodized aluminum (around the screen), and basically smashed it in a bit. So avoid dropping it there.
The screen itself is very durable, first touch only had a few minor scratches (tiny) and could only see them in very bright reflections. Second touch's (first had dead pixels all over, non in second, 8 months later) screen is still perfect
The brushed back will look like crap (unless you put a case on it) no matter what you try to do, after about.... 10 minutes.