First off, this is a great scooter and my 7-year old daughter loves it. It is more versatile and fun to ride than a traditional scooter but it suffers from one major flaw. There is no brake of any kind which is not only a convenience feature but a safety issue as well. The only way to stop is to pull a "Fred Flinstone" and put your foot down hoping to stop before crashing into something. This is especially tricky when going down hill as this baby picks up speed fast. Also, the "self-propelling" feature advertised by twisting back and forth is not very effective unless you're on a very smooth surface. But overall, like I said, this is a great scooter though I'd highly recommend exercising safety especially when navigating hilly terrain.