The kraken x series actually have some problems with their monitoring software... so its actually a good thing that they aren't selling them here in hk... yet. I bought a x62 almost 1 month ago and there is a bug that it sometimes disappear from the monitor software, which makes u cannot configure it, you will be forced to reinstall the drivers basically every single restart/power up and then configure the colors, the fan speed and pump speed all over again......... This issue has been going on for more than a year and it seems nzxt is still having a hard time debugging it even when they claim this problem should be solved every time they release a new patch/update for kraken series. You can read from their forums and see how many people are frustrated by this problem...
Besides from this bug, this thing is a fantastic cooler and the best looking one too. My 7700K is around 29-33C in idle and around 5XC when gaming.