Overall I enjoyed the single
I'm not really saddened by the numbers because I really loved the single. I loved both songs and bought my copy. Sure it's not the days of 300k but those days are long gone and not just for Ayu. Everythings digital now a days. Not many people buy CDs anymore.
And as far as popularity, Ayu's fine in that department. If not she wouldn't be having Arena Tours and they wouldn't be sold out.