I have done Spinning Racer when it was at the Hamburg Dom. A solid coaster. Don't expect Whirlwind, though. This is far smoother and because they fully load, you won't have the obscene spin. It rides like Crush's Coaster at DLP.
Either way, is it just me or is it a bit of a shame Fantasy Island seems to have become a park that just temporarily hosts funfair rides? I mean, it's great the park has had a clean up and I didn't have a bad time there last year (my first ever visit) - but I certainly have no real urge to return, given the distance.
Spinning Racer will I am sure serve the park's interests well this year, but long term - can't they aim higher than a glorified fairground?