I have a Fuji X100 since July. 

Did it improve my photography? Yes it did. A lot. Not because it is a better camera, but because it encourages me to use it in a different way. It challenges me and encourages me to work for each image. Saying “the camera makes great photos” is like saying “your oven prepares great meals”.

How is it to work with the X100? It is a Diva. Image quality is superb. Low light performance is amazing. Metering is amazing, too. Autofocus is a lottery. Sometimes fast, sometimes it just doesn’t quite want what you want. A Diva. At the beginning I also hated the UI and the buttons on the back of the camera, but meanwhile I notice that the functions are wisely distributed and rarely used. Besides formatting the SD card after downloading photos I rarely use the menu. The aperture, exposure and exposure compensation wheels are such a pleasure to touch and use. And the absence of a P/A/S/M mode dial or any scene modes is a further advantage. Just put the aperture and/or exposure wheel to “A” if you want the camera to take over. So nice and straightforward. The X100 is not and will never be my work horse, my all purpose best friend. It is like a Ferrari: somewhat limited in what it can do, and expensive. But brilliant at what it does, and such a pleasure to master.