I have been a Amazon buyer for years. This will be the first review I have ever posted! I purchased one of these Mongoose scooters for my son's 13th birthday on August 3rd, 2020. He absolutely loved it. It was very smooth and was super quiet when running, very fun to ride. He loved it so much we purchased a second one for his brother. Then about a month later my 13yr old's scooter stopped working and my other son started to complain that his scooter was jerking. The engine on his seems to be cutting in and out and has made it unsafe to drive. I have emailed the company twice now, with no response. I am very disappointed , to spend so much money and now both are broken after only a month. I should say , they were not abused in any way. We have a very large paved driveway and street the boys were using them on. I am going to keep trying to contact the company and if I get a response I will update my review.Edit- After 2 emails with no response, i called the company. They told me to check the wire connections under the deck of the scooters. The second scooter i purchased seems to be working now , although we didn't really find a loose connection. The first scooter i purchased, we couldn't remove the deck and were afraid to strip the bolts. I called the company back they shipped the scooter back to look at it and told me they would call me. A few weeks later a new scooter showed up at my door. I have two very happy boys again!