I bought this product because the joystick on my controller caused me to drift. After we searched and found that new controllers were few, and when they were found, prices almost doubled in four months. Instead, I decided to swap out the joystick on my controller. The exchange was very easy and went smoothly. But one piece of advice: before you open the case, cover the R or L keys with painter's tape, they're flimsy and when they come off a tiny spring falls out, which is very difficult to find. In terms of quality, the first exchange took seven (7) days. The direction to the left and down was barely responsive. I replaced it with another joystick from this kit and the direction stuck on "up". I couldn't get it to respond in any other direction. Because of this, I couldn't even try to calibrate it. I now have the third joystick from this set. Even after calibration, when the joystick is moved all the way to the left, my character walks slowly. The direction up, right and down works well. Overall I am very dissatisfied with this purchase. When working with thin electrical components such as B. the tiny ribbon connectors in these controllers, they can be bent/broken easily, so you shouldn't pull them apart all the time. The low quality of the joysticks in this set means you'll often have to open up the controllers. Not a good idea.