Since I had experience with Quatcoptern have a lot of it is not difficult to fly me 200 qx. But even the beginners can master the system quickly. Have tied up with the new DX6 the copter. No problem. He is really super quiet in the air and looks in particular at night flight from gigantic. Unfortunately, I did not have a propeller. That is not necessarily a tragedy but the seller thought that this was indeed never happened and was unwilling nachzuliefern a propeller. Therefore no full points.