Like John, I bought one at last year's Maryborough Ulysses AGM and find it really easy to manoeuvre the bike around.
I'm considering buying a second for the ST1100 . . . Or maybe sell the bike . . It is not quite as manoeuvrable as the one for $300 but it is a good unit and a much better cost.
One just needs to be a tad careful that, when pushing the bike forward, the unit doesn't snag on something and force the side-stand to retract . . Could mark the plastic and require assistance to stand the bike up again.
Oh and definitely for flat ground only, not for sloping driveways unless you have the hand brake fitted.