I consider myself still a very beginner, so maybe my opinion will be helpful if you are like me:
This is one of the best tricks I've ever purchased, because I already love the crazyman's handcuffs
and this adds incredibly much to it with minimal preparation and some very elegant moves.
I
purchased it just yesterday and I think it will be a long time before I'm confident enough to
perform it, but it seems very well learnable even for someone of my level.