Instruct: Classify a given Amazon review as either positive or negative.
Query: Poor quality and frustrating

I agree with most of the reviews here. Broken track pieces and duct tape were what resulted after just a few days of play. Operation is challenging for the adults so tears usually follow for the 3-5 year olds who can't get it to work properly with the crank system. We thought that we would save money on batteries, but the timing and clunky feel of the crank system makes having fun challenging.