I thought the character was interesting to begin with, she was something different. It was different to see a character that only lived 9 years because every other species on Trek has a longer life span than humans. It would have been interesting to see someone's whole life played out durring the run of the show.
But other than that she wasn't that unique, her short lifespan was the only unique thing about her. Pointy ears, mental powers, that's nothing new in Trek