[Need help] I ask questions with whom PVD model.

[rd1s35]

I'm thinking about PVD model next my PAM.
Yet I don't have any PVD model, to see the DSN PVD pictures, the surface looks rough a little.

How about the surface of PVD models?
Isn't PVD coating off and and isn't the colour peeled for scratch?
Please let me know your valuable opinion.

Last, what's recommendable PVD model?