It was on our list for DS1, but we chickened out because we were afraid it might too easily be confused with Aiden, which neither of us like. We're looking for a non-pretentious, non-trendy, non-complicated name. Big brother is Sebastian.
I like it; it's actually on our list for a boy!
I wouldn't worry *too* much about it being confused with Aiden. That would only really be a concern, I would think, when reading it. The first vowel sound is quite different, so when spoken it's clearly a separate name.