It's charming and wonderful, indeed, but far from challenging. It's strightforward and, somehow, easy and short. But since the very begining you fall in love instantly with the game and with Aurora's cuteness.
@RebootEDC were you playing on an easier setting? In our own review (here: http/www.poweronpub.com/child-of-light-review/) we very briefly mention playing on a difficult setting, but maybe it should've been covered more. The game can be a challenge if played on a harder mode, in my opinion.