I've had my GSF since March 19 and can agree with all the comments. I use mine mostly on long distance runs: down to London from Brum and out to France and Spain - currently showing a long term average consumption of nearly 29 mpg which is hard to believe but true!
On a separate issue see my post about fog lights - the lack of sideways illumination from the headlights makes tight corners on an unlit road scary!!! Anyone had the same issue or found a solution to this?