I just like that style. She's not unique but it's the type of voice I enjoy listening to, charachter above perfection.
I hapilly concede there are plenty of technically more gifted singers on the show, but they're not to my taste. All the others are big voice belters and that just isn't pleasing on the ear for me.
It's all abotu personal taste.
p.s. she does genuiknely seem to be a sweetie, but hard to tell obviously