I've had my R1200R with the DOHC ("camhead") motor for a month or so. Really great bike. PO put on an Akrapovic that changes the tone considerably from the sewing machine OEM can. Can't say enough good things about it.
I had dinner with my BMW Club friends tonight, and they said the new water cooled R1200R is better than the older R1200R. This was in response to my honest assessment of the older version reminding me of an old pickup truck, loose and imprecise: you sort of keep it moving in the right direction without any great sense of precise control. I should try a new one to see if my reaction is different. I do like the latest wet clutch (in front) design, for service.