Using this mobile device holder is super easy. Just place your mobile device in the cradle, and it'll be held securely. If you have bags or other items, you can hang them on the integrated bag hook. When installing, make sure to use the provided stainless steel, sheet metal screws to attach the back plate to the wall firmly. Then, attach the front plate and the hook as described. As for maintenance, you can wipe it down with a soft, dry cloth regularly to keep it clean. Avoid using abrasive cleaners as they might damage the satin finish. Also, check the set screws and rubber bands periodically to ensure they're in good condition. If you notice any issues, such as loose parts or worn - out rubber bands, replace them right away.