Using this Apple display is easy. Just connect it to your compatible device and power it on. When setting it up, make sure the cables are properly plugged in. For the best viewing experience, adjust the display settings according to your preference. As for maintenance, keep the screen clean by using a soft, dry cloth. Avoid using harsh chemicals as they might damage the screen. Also, place the display in a well - ventilated area to prevent overheating. Since it's a used item, be aware that some minor wear might be visible, but it's been tested and is fully functional.