Took it for another spin today before bringing it home.
I can go from top speed to stop in only 1 and a half boat lengths!... then spin it literally in place and shoot back in the direction I came from in a few seconds.
The physics of Jet boats are great... so maneuverable... even for a newbie like myself (I have never driven a boat before in my life other than my Dad's fold-up with a whole 15 horsepower outboard, canoes and a couple of sail boats when I was a kid.)
It's got a holden 202 motor and kicks into a real nice planing/cruising speed at 3000rpm, not sure how many knots it is doing coz the speedo doesn't work, but it's certainly as fast as I am comfortable going right now.