These controllars can be a breeze to clean. You can find how-to-videos on YOUTUBE on how to clean or repair your model of controller. With a Power A You just need a precision screwdriver set, a bottle of isopropyl alcohol (aka Rubbing Alcohol), and some electronic cleaning swabs. And something to organize your screws. Some rubber mats are used for circuit boards and other assorted electronics and have little places to organize and keep your screws in place.