The effect elicits a very rewarding response. The handling is very simple with no challenging moves. There is a very slight amount of memorization required. It would be a five star trick however the set up of your desired image is very tedious.
Ideally the effect (especially at this price point) would have come with an easy to use plug-in imaging software, or at least clear instructions where to get such software. I don't think I am revealing anything in that the desired image needs to be split into 9 sections of very specific size- which is much easier said than done.
I scoured the net to find appropriate software to enable me to do so. I shouldn't have had to spend a day trying to figure out this essential part of the trick on my own.