The editing could use some work (not that I'm an big expert on video editing...), tis true, but it's not that bad. Also, YouTube's streaming process can be pretty notorious when it comes to de-synching videos - such might not be the author's fault.
I dunno...it's not polished, but it doesn't always have to be a professional looking piece to be fun. And I like the music, it works just fine. About half of the most popular WoW and AMV videos are actually pretty...well...crappy, but if they're fun, they're popular.
So I say...keep on working on it. If you like doing it, that is. I barely have the patience to make even inane and stupidly silly 30 second videos, let alone a whole "project", myself. :D