Just because of that, if they are different flavor altogether, I can like one of them and not like the other.I completely agree with this. These days, all the IEMs are pretty good with respect to the price point, especially within the same manufacturer like Aur. One is not necessarily better than the other, but just different flavor altogether.
It can be said than Aurora is a smother NP too, it is warmer, with DD bass and less treble.
But I love the NP and I don't like the Aurora... I am not saying the Aurora is bad, only I subjectively don't like it.