In English, it feels more distinguished than in does in Polish, where (especially with the nicknames Seba or Sebix), it's stereotypically chavvy.
I'm not opposed to it in English, though it's not a name I'm particularly attracted to. I like the association with
Saint Sebastian, with
Sebastian Flyte, and with the band
Belle and
Sebastian. I also like the tautological combo
Sebastian Augustus.
Bastian is a nice nickname. The others are horrid.
masculine list:
https://www.behindthename.com/pnl/191050/124079feminine list:
https://www.behindthename.com/pnl/191050/124080