The video shows this is very easy to fly in a large building, but the counter-rotating rotors, whilst inherently stable, make controlled flying difficult in even a gentle breeze, so it can't really be used outdoors in anything other than very calm conditions. It is robust enough when it comes to 'hardish controlled landings', but by the 10th flight the metal teeth on the main gear attached to the motor had stripped the nylon teeth on the drive shaft - metal on plastic is probably not a very good idea in this sort of set up - and I sent it back for a refund, which arrived reasonably promptly.