lets face it, NZXT AIOs are all about the looks
when it comes to performance, any AIO of same radiator size will perform in same way because of Asetek having monopoly on pumps and holding troll patent on their pumps
then we have fans that can be replaced by any brand (looking forward when manufacturers will sell no-fan versions of AIOs)
and then we have all the fancy stuff of looks
i would also love if NZXT AIOs had, say, optional RGB external source cable (lets remember they are addressable so its 3-pin) but at least the CAM software provides extremely large range of effects (contrary to other half baked control software)