I just returned my rental and have to say that I really enjoyed using the X100. I shot a lot and made comparisons with 4/3 and m4/3 gear. For the most part the IQ was better with the X100 except for my EPL1 with the Panasonic 20mm lens. There was little difference there. I found the X100 easy to learn and easy to use. The flash is just amazingly consistent. Better than any other dedicated flash I have used.
E1/grip, E500, Zuiko 7-14, 40-150, 70-300, 50/F2.Panaleica 14-150, 25/1.4