Bought this for our grandson after visiting our other grandchildren in Boston, USA where it seems to be the number one toy for girls and boys. Wasn't sure how it would translate over here, especially for boys, but our grandson loves it and spends many hour working out pattern with his cousins in the USA by video link. We have had to get 3 more for our other grandsons so perhaps it will become as popular here!
As I had read there were many counterfeit models out there I was happy to pay extra for this from the company. It arrived very promptly.
Ps if you know anyone going to the States get them to bring some elastic bands back - they are so much cheaper over there and once started the fly through them!