she is very good there, not sure if she bottoms out slightly on some of the high notes, but then if they want to be the judges can be so picky on these shows, i would rather say that it was a great audition song that she did and not be picky, because it is better then any of us can do.
but starting out low with her pitch and then building up to hit the higher notes is a good singing strategy, especially for shows like the x factor as they are looking for dramatic performances with the most edge and uniqueness to there singing and auditions so in that regard it had the edge.
i thought it was a good audition is what i am basically saying.
she has everything right as well which is said to be important when auditioning http://x-factor-2014-auditions.blogspot.co.uk/2013/05/how-to-audition-for-x-factor-usa-and-uk.html
stage presence, check
clothes and makeup, check
confidence, check
drama, check
professional look, check
so that was a pretty decent x factor appearance there, one of the better auditions you get on the x factor, good video