I've had the machine for about 1 week now, and everything has worked perfectly. Very satisfied with the product so far. Unfortunately the shipment was very delayed, but the reason for this was the freight forwarder and not Louyang Bing Yang Laser. I experienced very good service from Hailey Yuan from Louyang Bing Yang Laser. If I could do anything different, I would probably have insisted on using a bigger freight forwarder like DHL, Fedex etc. to make sure the shipment was quick.