Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: If you have smooth hardwood floors, read this!

We bought this for my son, who quickly became frustrated because the smooth wheels slid over our hardwood floors rather than rolling. Even adults have a hard time getting it to roll rather than slide. We remedied this issue by tightly wrapping a few rubber bands around the circumference of the wheels to create traction. It works great now and my son loves it. The old ones were made better, though. The toy is definitely worth the $15 paid. Of course, DO NOT use rubber bands on the wheels if your child puts small objects into his/her mouth as this would absolutely be a choking hazard.