Mmm, beemers.
I haven't ridden one, but I've heard that because of the lack of centrifical force caused by the opposing cylindars, the bikes drop into corners and you don't have to wrestle them to keep them there. I've spent many many hours in canyons and mountains, and keeping a bike in a corner at full throttle is a serious work-out.
My 1-1/2 year old is almost ready to ride. Should have seen him last nite when he got home with mom; I had the 2 street bikes, and 2 quads out in the driveway. He got out of the truck, saw them and his eyes lit up like a Christmas tree, and he points at my TL and goes: "Vroom Vroom". (those were literally his first words, when he was like 7 months
)
'Rekd