I have been shooting with the Q for about a week and I am extremely impressed with the ease of use and the seemingly endless resolution of the dedicated Summilux optical system. This image was shot at 1600 ISO and was tightly cropped with very little image degradation in the shadows. I will try and shoot some side by side images with the RX1 to give a feel for each system's capabilities in real-world settings (taken by a dedicated amateur !) Both are amazing cameras and represent outstanding technical achievement by each makers - but if I had to carry only one camera it would be the Q at this point. I find the 28 on the Q to be less constraining than the 35 on the RX1 - so we will see - I just wish I could shoot with both cameras at the same time !! Thanks for the comment!