A friend of mine showed me this video recently and it's a great video that gives all the information you need about the KRX. Th person in the video is a product manager for Kawasaki so he covers every single corner of the KRX.
Four Wheeler Network wrote a quick review of their first drive in the KRX. The really liked how responsive it was to drive and how accessible all the service points were.
TFLoffroad took the KRX 1000 to Moab to test it in the dirt and to see how it handles rock climbing. It's a really thorough review and there's some great footage of the KRX.