Cost is very high and it takes atleast 3hrs to assemble, that too if you follow the instructions carefully. But even after proper assembly some movements are stucking, especially the grabber. While assembling my 9yrs old son was very excited, but after its improper functioning, all excitement turned into Dissapointment. Now its lying idle, he is not even Interested in this anymore. Totally wasted my money and time and my son's birthday gift (this was supposed to be his birthday gift). Dissapointing especially at this price.