It works well but I modified it to be even better.
It taught me that if I had started with a full-sized quadcopter, I would have certainly wrecked it! Flying one is a lot harder than I expected, but happily this little thing is very sturdy and is radio controlled, not IR controlled, so it can be flown outdoors. It has been very useful in teaching me the basics.
However, one complaint I have is that the Yaw control (rotating left/right to change where "front" is facing) is done by turning the throttle joystick left or right. There's no real problem with this, but on such a small remote and small joystick it's nearly impossible to tilt the joystick left or right without also moving it up or down and changing the throttle.
I solved this with a minor hack to add two "shoulder buttons" that will rotate the model left or right at a moderate rate when pressed. I can still use the joystick, but I prefer to use the joystick only for throttle and use the new shoulder buttons to control Yaw. Much better!