Yes I owned it for a short period while waiting for the Olympus 75mm f1.8, used it on OM-D.
A bit too long for my liking especially on M4/3 Crop factor of 2x, but Actually in retrospect I was very pleased with the performance. Makes me regret selling it
Sharpness is Very good, Bokeh is creamy too, Given some spare cash I'd definetely try to acquire it again and use it for my Fuji XE-1.
I have no rangefinder body so can't comment on the performance on either film/ Digital Ms...But I tested it once with a friend's M8 and Focusing is not so bad (Forgot which Frameline come out though, maybe its the 50mm one).
Thanks dsetiono01. Really helps. Damn...the image quality from the lens is nice..i intend to get it and use it on my bessa r3m since it has a 75 frameline...gonna do a lil bit more research n mayb jump into buying it...tempting!!!