Nothing.
Outstanding every day, from short commutes to long-distance rides.
Exceptionally friendly, and easy to handle at high speed or in parking lots. Takes sweeping curves and tight bends with equal facility.
Accelerates like a sport bike, with comfort that approaches the Gold Wing. No wonder this is the choice of European highway police (known as the Pan European over there).
There is a sweet spot at 100mph that makes you think you can ride all day at this speed without fuss. As close to the perfect motorcycle as you can get.
It's no wonder that you rated the ST1300 so high (all 10s) ; you owned a Harley before it.
The ST is a great bike.
Thanks for the review.