Funnily enough - I've just finished work on a R1100S and got it through the MOT - had K bikes in the past but this is the first twin. Quirky I'd say - blip the throttle and the whole thing moves sideways about two feet.
You get used to the torque roll. I had an R1150RS for a while but it was stolen in Mayfair. The 1150 had some low speed fueling issues because they only used 1 oxygen sensor.
Nice, sensitive resto. This is mine after a wash in May, otherwise it's not had the covers off all year!
I've had it 20 years now :-