I am not so much impressed by the bokeh (poor highlight rendition).
Feels a bit like the Sony 70-400G.
Wonder how it will compare to the fuji lens. Also doens't the olympus lens have better resolution than the sony 70-400G ? (of course it is a 3x lens instead of a 6x lens).
Frankly, the boukeh is not the end all be all for this kind of lens. I have used it quite a bit and find that boukeh is perfectly OK for the higher focal ranges. The lens is very sharp, the AF is wonderful (on the EM 1) and I find it to be perfectly good replacement for my Nikon 70-200 in everyday work. It is great in the studio, although I prefer the 75 for headshots.