Hung, a member here, has just been kind enough to lend me his X100 for a trial. First impressions are that it is lighter than expected (which I don't like), and I'm having trouble with my right thumb accidentally pressing control buttons when I'm simply trying to grip the camera. I wish it was a little bigger and had more mass, and I wish the grip areas were a little better defined and cleared of controls. I'm comparing this of course with the cameras I use and like - Leica M (very few controls at all!) and the Pentax dSLRs which have a pretty good shape and grip for my hands.
I'll shoot with it over the next few days. Thanks Hung! 🙂