This won't answer your question completely, but I have used the Valvoline full synthetic 15W 50 in my 1200RT. I'm assuming it's the same oil.
Probably as good as any other full synthetic and it worked fine. But the Beemer had a dry clutch, the only catch with using automotive grades is that you need to be careful of the energy conserving additives that may be present, which are reputed to cause slippage in wet clutches.
Problem with oil reviews is that you don't really know if it was good oil or not until 50,000 miles down the road.