From the direct message conversations which led to placing a direct order to the quick shipment of the controller, the customer service provided for these controllers is top notch and puts a mind at ease with constant updates as well as a simple way to track your order. Regarding the controller itself, I have found no issues during my testing. Connecting the controller to my PC was a breeze and is just as responsive as a controller on an arcade machine. When the time comes to pick up an SDVX controller, I'm contacting Yuancon first! If you're curious or interested in purchasing a controller, do what I did and just message Yuancon your questions. I was able to get both information and a quote for my controller with no pressure.