Apparently Zaanse Schans is busier and a bit more touristy. Also the mills at Kinderdijk are authentic whereas the ones at Zaanse Schans are more recent (not that you notice). It’s ‘just’ mills at Kinderdijk, nothing more.
I have the D lux 7 and like it a lot, want to upgrade to the Q2, but one of the things holding me back is image processing. The D lux 7 is great to quickly share pictures from the camera to phone/laptop, have the feeling that for Q2 it takes a bit more effort?