This was my second model helicopter, having previously had a single rotor model. Once charged, pushing forward the (left) throttle stick lifts it into the air. However, it might start to rotate at anything from a slow spin to a quite high speed spin. To correct this, the remote control has a small knob in the centre, and with gentle adjustment the spin can be stopped. What I found though, was that as the height at which it was flying was increased or decreased, a spin could return, (probably due to the torque from the motors), and this I didn't expect from a twin contra rotating blade helicopter. With some experience, it can be controlled reasonably. Similarly, as an earlier correspondent found, the helicopter might have a tendency to only fly forwards, or similarly only backwards, but there are buttons at the top of the control marked F (Forward) and B (Back), to adjust the fore and aft trim. These again are reasonably effective. I have also found tendencies to turn when reversing is applied by pulling down on the control.
All in all, quite a challenging helicopter to fly, but great fun, and well worth the money. Mine too has suffered a number of crash landings from colliding with walls and furniture, but without damage, so it is fairly durable. At this price buy one, and enjoy!! Having said at the beginning of this review, that I had a single rotor helicopter, I should mention I still have it, and it was distributed by the same company. I ordered spare parts through a local model shop; the parts arrived as ordered within a week, and having fitted them, I am flying again.