Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Could Use Improvement

Don't get me wrong, Toby is probably my son's favorite train - he asks for and plays with him several times daily. The train is very durable and withstands a lot of abuse from my almost 2 year old. My gripe is that all of our other "Thomas" trains move around the track with ease, whereas this one sticks a bit. I think the bottom part of the train (the grey portion) is a tad bit too long. Toby seems to have trouble on turns and hills. My son of course does not notice or care; this is simply my observation - which is why I still gave 5 stars.