UPDATE: Changed rating from 5 to 4. Smooth Okay sound is very subjective and we all hear things differently, but it does feel that way to my ears. i had to cut off the train as was too long. I bought the kids? size because they?re cheaper ?? so I wondered how they would fit but they?re perfect! Interestingly, Amazon has this product so poorly labeled, I nearly gave up finding it in my searches. They are also very easy to spin and have no hang ups (unless shoes are hanging too high or low and touching another pair, but we have not had any issues with this). the bike will stay on the stand and the front wheel. The shoes were hard and did not provide enough cushion even with the fur lining. The blue pair that I purchased in November have not changed much in terms of look, and were perfect for daily jaunts around the pool, at the beach, hiking up small hills, and for strolling around town.