This effect is a crowd-stopper. It's very visual as one coin becomes three, becomes one, and
eventually becomes three other coins completely. While there are sleights involved, there's nothing
that's necessarily going to take months of work to get. Most of the work is done through the miracle
of the coin. I saw this demonstrated at a magic convention recently and every time the dealer
brought it out and started working with it, a crowd would gather.
The coin(s) look nice and
as long as you keep everything moving as in the performance, you'll be fine. The coin doesn't "talk"
as the effect progresses and it's well worth the effort of learning. The only angle issue you have
is no one can be behind you but that's standard for most coin effects. Can you hand the coin out at
the end for examination? That depends on how well you can do a coin switch.