Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Hunk of junk

This would be a lot of fun, if it worked. It was broken, right out of the box. Main rotor was cracked and shaft was stripped. Epoxy fixed this and got to fly, for about 1-2 seconds. Then, the lower motor gear slipped off. This happens every time you start the motor. When the main rotor spins, it takes flight, sans the rest of the helicopter. I will say that the rotor flys well, if only the rest of the copter accompied it.