The system is well thought out and the utensils are of high quality. I think the price is justified.
Its amazing to see how the numbers change.
But I subtracted 2 stars because the spectators
(mine were 11 years old kids) can find out the possible secret quite fast. Because the handling is
so clean and impossible, it leads to one clue that the number can be set by any input device. The
creators say its not detectable… In fact it is enough suspicious to get a clue what is going on.