When it comes to Ayu i'm stuck in the past still
I enjoy her new stuff, don't get me wrong, but as far as i'm concerned... A Song For XX - Rainbow is where she shone the most. The pitch of her voice and the lack of... refinement is what really made her stand out to me. She didn't sound like anyone i'd ever heard before (in a good way) and it gave her songs a more personal quality imo.
As far as the review goes, i don't get the notion floating around that you can't review compilations. It's far far far from impossible or pointless to review a compilation, infact, in the case of A Complete, being a full single compilation, it's a good way to give a review of her body of work. In music magazines it's no surprise to me to see compilations reviewed. It's good that a reviewer can look at a number of songs spanning a career and say that the artist was good/bad/whatever at certain points in their and give a balanced view.
This review however was terrible, can barely even call it a review.
Finally... as far as i'm concerned, this is without a doubt a 5/5 release.