Instruct: Classify Amazon reviews into positive or negative sentiment
Query: broken

This product has the worst motor I've ever experienced in any of my son's toys. The motor seemed to implode the very first day we had it. By the way, this is the story on our second toy. We had to return the original one because the motor came broken. The gear "shaved off" according to my 6 year old. Such a disappoinment. We're pretty bummed in this house. We're going to play with modeling clay instead.