Yesterday ready built, looks good. And is greater than one might first think. The construction period is because only about 1,000 parts, not too long. LEGO has summarized in this model for the first time for me) the manual in a thick book. Let's see, when I build the second model ... The additional functions with the battery pack and the motor, which are not included, does not pay, except maybe the front light. The Motor is only two functions because that can be just as easy and fast to operate by hand.