I have bought many remote control and other electrical items from Banggood. Although not all of them have worked when I received it, the great customer service at Banggood always makes it right. Recently I received 2 bad flight controllers in the same shipment, and another drone that had a flight controller die after a day, and Banggood was true to their service and refunded my sale. Thanks! And I look forward to shopping more in the future.