yes its a soft release button, I have big hands & fat fingers lol, so i find it to be brilliant & useful addition as well as looking blingish.
I had noticed red ones elsewhere there turned out to be plastic which i was unsure if i liked that idea. The only metal ones i could find for cheap cheap £6.90 delivered (ebay) was this gold one or i think they did a silver one.
These buttons fit all cams with screw thread shutter release button. But the diameter of the button top actual varies. For the fuji X10 11mm is pretty dam perfect , if it was 14 mm which is another popular size, then it "May" get in the way of the dial on top next door. so bear this in mind if you get one.
They do the plastic ones in many colours and designs with various logos like Leica & similar, i couldn't find a Fuji one
I defo recommend one, it makes locating shutter button really easy especially for those with bigger hands. It also feel more like a button that what we already have on the X10
Daz