Pros: It's unique, helps you stand out, defines you as "cool" (sometimes), etc.
But there are definitely some cons...
1. People mispronouncing your name
Nope, it's not Kelsa or Kelse-ah, sorry, thanks for playing, try again.
2. People misspelling your name
I don't even try at Starbucks- if I hear Chelsea, Kelly, or literally anything that rhymes with that, I'll respond and won't even bother to try and fix it.
3. Dealing with the constant red squiggly on Word
Every paper, every letter, resume, etc. Anything that says my name anywhere has that dang red squiggly line to remind me yet again that my name is "wrong."
4. Constant auto correct
I appreciate the spell check Apple, but aren't you supposed to recognize my name??