Extremely happy with the purchase. Your team was helpful to make a decision which would be the right wheel for my daughter. The King Song is a big upgrade to the Ninebot A1. Not only is it a lot faster, it feels way more stable and stronger. Great range for day to day cruising. It really provides a fantastic opportunity to explore a hilly neighborhood, giving a feeling of independency and freedom. After using it now daily since almost 3 months the ewheel performs well and without any problems. Thanks EWHEEL for your great customer service and and inspiring and informative website!