Ayu usually says she likes any new release and she probably couldn't even say The Gift is mediocre even if she believed that and wanted to say so. She released the track because she likes it. Of course she'll "adore" it
I think the classical version of the gift is beautiful, but the regular one doesn't do it for me.
As for A ONE, I have a few tracks I love, that stand out to me because of the lyrics or arrangement but as a whole it's pretty standard; nothing super special. I still like it though. To me it's a good album