"We got this for my son primarily because he loves helicopters. I was really impressed with the set once we built it. The blades on the copter spin together with a crank, independent of a well built operational hook that comes with locks to keep it from just spinning completely in or out. Even the little snowcat is a great piece with operational tracks.
In the secondary snowmobile operation, the look of it is great, and while it's not as "operational" as the copter with the blades, my son has loved playing with it and had just as much fun as with the copter.
For the money, this may be the best value set I've ever purchased for him."