I saw a comparison somewhere between this and the 56 and some people preferred the bokeh on this one when stopped a little. Of course it's f/2.4 vs the f/1.2 so that's a big draw for the 56.
It is sharp, one of the sharper in the Fuji lineup. Slow to focus and only 1:2 macro but it is light. I use it much less now that I have the 56 though.