I just read the Cycle World comments and after spending over an hour on the K1600GT I don't understand how anyone can even put it in the Sport-Touring class, unless you limit Sport-Touring to very smooth and pretty straight roads. The K1600GT is definitely the king of comfort when the road is smooth, although the C14 isn't far behind, but when the roads get twisty and bumpy in places the K1600GT is really out of its element and the ESA doesn't help much because it really doesn't do much, just some minor adjustments in rebound damping in the rear shock. Riding the BMW around a 15 mph hairpin was like being on a big, overweight cruiser. Overall, I liked the K1600GT and would buy one if it were not for the maintenance schedule and that my nearest BMW dealer is 150 miles away, but it would be my touring bike, not my sport touring bike.
They really should compare the K1600GT to the ST1300, since the BMW is really a heavier, faster version of the ST1300 with a lot more bells and whistles. In the mean time, Don Canet should stick to evaluating motorcycles he knows something about; race bikes that are (barely) street legal.