Ohlins are being installed on my R12GS as we speak! I've been okay with the stock shocks, but at 66,000 miles the rear shock is leaking, so I decided to pull the trigger and replace both. Surprisingly, the price difference between the Ohlins and a new set of stock shocks is less than 10 percent! So getting the Ohlins is a no-brainer as far as I'm concerned.
Like I said..... Awaiting with great anticipation!