Trust Me, Fi Is...Unique, To Say The Least, But She's Just a Terrible Character.

She Lacks Character Development, A Clear Persona, and Depth Perception, Worst of All is How Badly Her Relationship is With Link, She Has a Forced Relationship Similar To Navi, The Two Share No Bonds or Conflicts, and Fi Adds Almost Nothing To The Plot.

She's Also Really Annoying in The Most Unnecessary of Ways...Still Though, if You Like Her, That's Okay, This is Mostly Just My Own Bias.