The only drawback: relatively strong barrel distortion to the image border. Can of course be at RAW work something counterclaims in retrospect, but it is present nonetheless. Who only requires JPGs, enjoys the advantage of in-camera correction. But only if you have previously selected the menu item for it - which is cumbersome for frequent "objective change" and can possibly also forgotten times ...
Those who like a little more preferable Wide to eg closer to the action while capturing more so is dead right. Taste a touch too much and will thus not be in everyone's pocket? More wide-angle is also not for everyone and so the photographer / photographer must already ask whether it comes to meet his / her photo habit. Personally gives me the feeling converter lens changes on the X100S and is almost always on it.
Update: 30.06. Imaging Resource has written a commendable and comprehensive test
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