Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great puzzle/toy

My 2 1/2 year son received this toy from his grandmother. He loves it. He can put it back together himself and is very proud of himself when he does it. The only difficulties we have had is one of the screws came apart and had to be reglued and one of the screws is bent due to a knot in the wood and is difficult to screw in. We have only had the train a few weeks but it is holding up otherwise pretty well to a 2 1/2 and 16 month old.