This is a fantastic value for the price; in fact, one could argue that this is way under-priced. It may be my best purchase on Lybrary to date. The advertising text is spot-on. I've played with this several dozen times, and it almost seems like real magic in my hands. It's quite fun seeing the impossible come to life in my own hands. The "moves" are well covered by natural actions, and not very complicated.
My only minor quibble is I think a couple of the illustrations should have an "exposed" view. Some of the illustrations are very clear, and a couple were not as great. Part of the model's thumb gets in the way of some of the stuff I was wanting to see. However, I was able to piece it together with the very clear text and the other illustrations.
Finally. There seemed to be a bit of a knack with making it work for me, at first. Keep working it! After a couple of dozen times of going through the procedure, I was able to make it work 100% of the time. It's certainly not complicated, but like anything, it takes practice to get the "feel" and "smoothness" right! If you perform the rather simple and natural "moves" on the off-beat, you will hide even the slightest hint of funny business. The end result - three linked ropes previously tied separately - is a miracle ready to happen. The only way to undo it afterwards is to untie the knots!