I like it. I like
Damian and
Damien and I don't really have a preference there, but my brain automatically picks
Damian.
I agree with the comments saying it's handsome, gentle, and strong. I think it strikes a good balance between having a lot of character and being usable in that it could fit any random person. (There are a ton of different archetypes of people who could fit the name
Damian well, but that's not because it's blank.)