I had it on my last trip. I got one at the bar at the end of the evening. First they said they were too busy to serve it, but then they agreed to bring one out.
It was OK, but not great. I order it all the time when I go to Australia and the Disney version was my least favorite of all that I have tried.
If you've never had it, I'd recommend trying it. It was a bit too dry and dense compared to what I am used to but very unique.
I've never tried the ice cream, but I saw the Food Network special that showed it was developed in a competition for new flavors. It sounds great to me.