We have for more than six months, and if our children are now somewhat jaded, it still fascinates visitors! It offered everything we mounted, it appears that it was not easy and had to add a lot of heavy tape, to keep the fins, but it works very well, it is very handy. We must inflate regularly, fortunately we were offered the helium bottle simultaneously. The ballast setting is also quite tricky, but my children have become experts (we can fly it at the desired height). Apart from these constraints, it is a great gift, which are always small effect.