Canon M39 screw mount 85mm F1.9?

Hi all,

This craigslist post has been circulating for a couple months and every time I see it I find myself drooling over the Canon 85mm F1.9. With graduation season coming up a long portrait lens seems useful and manual focus wouldn't be a huge concern from a fixed location in the crowd. It would also give me a chance to see how much need I have for the upcoming 75mm and at one-quarter the price. Plus, I feel like this lens would look oh so good on my little black pen mini.

I've seen a couple other threads regarding screw-mount lenses and it seems that they perform well on u4/3. Does anyone have experience with this lens in particular?

http://washingtondc.craigslist.org/doc/pho/2954412337.html

Thanks,
Andrew