You might check the Cooke thread on f32.net and see if there are any reports on it on the Q&A forum at lfphoto.info.
I don't own it, but my sense from looking at the sample photos I've seen in various places on the net is that it's a beautiful lens, but for the price, you could get an 8x10" camera setup and a few historic soft focus lenses or even the Pinkham-Smith lens that the Cooke is based on, and arguably you would have a better tool for the job. I really don't see coated optics as a big advantage with a soft focus lens, though the modern shutter of the Cooke lens is an attraction, if you use natural light or hot lights. Again, though, given the price--if you plan to use it in the studio with strobes, you could have strobe sync added to one of the old shutters or use a Packard shutter with sync, and there would be no advantage to the modern shutter.