Many people giving this a one star review are correct, but maybe not in the way they are describing. I too thought the motor or wall charger was defective on delivery because I was getting a green light on the charger but pressing the red button on the handle did not cause it to go. I then read the instructions and saw that, first, you have to kick off and get going on the scooter, then pressing and holding the red button will engage the motor and you'll take off. I confirmed this by testing it myself on our kitchen floor. However, it took quite a bit of "push off" and my kids lacked the strength and oomph required to get it up to speed fast enough for the electric motor to engage. Even I found it difficult to get it to engage consistently on several attempts. This is compounded by the fact that the wheels are not designed to turn easily and freely when not engaged, so it's already not very easy to get the thing rolling. If the average kid, especially younger ones still getting their bearings with balance (who this seems to be targeted toward), can't get it to easily turn on and go, then it's a practically useless toy and a complete waste of money. Will be returning this due to the misleading product description and poor design.