Ceramic Shield 2 is less scratchable, lightly scratched at 7, with barely perceptible marks at level 6. It does have an anti-reflective coating, but it is still pretty reflective. So for my iPhone (not Air) I will use a screen protector.
He couldn't break it with his fingers. Being titanium, it'd bend a bit but then would straighten back out once the force was removed... until he put close 200 lbs of force on it.