All in all, I am delighted by the cheap China version (our came from GearBest and cost about 5 €) and would definitely recommend it as a gift. Two other cubes, which we ordered at AliExpress , did not differ qualitatively – but the packaging was the same. One of the two was almost identical to the GearBest model, on the second the metal ball was not so easy to move. Overall, we can say according to our experience so far, that with the purchase of the China version you’ll have no quality losses and get a functioning little toy.
The design is very funny and using the cube can be unremarkable. A good way for the nervous type to relieve some stress or as the perfect gift for the jittery friend to relax a little.