Using this carrying case for your PS5 or PS4 controllers is super easy. Just open the bag and gently place your controller inside. Make sure it fits snugly so it doesn't move around. When you're traveling, you can carry it by hand or put it in your backpack. As for maintenance, keep it away from sharp objects to avoid scratches on the outer shell. If it gets dirty, you can use a soft, damp cloth to wipe it clean. Don't use harsh chemicals as they might damage the materials. Also, try not to overstuff the bag as it could put pressure on the controller and the case itself. With proper use and care, this case will serve you well for a long time.