I didn't use much the 10-30mm lens. I have got used to use prime lenses on D800 so I like to use those on Nikon 1 cameras also. I think if I would have used the zoom more, images could have been better on some cases.
Most of the time I had 10mm or 18.5mm lens on J1 and 30-110 telezoom on V1. Telezoom was on V1 because it is much easier to use with viewfinder.