Using this travel case is easy. Just open the case and place your DX300 systems inside. Make sure to arrange them properly to fit the interior dimensions of 22' x 17' x 6'. When closing the case, ensure it's fully latched to keep your equipment secure during travel. As for maintenance, wipe the case with a soft, dry cloth regularly to keep it clean. Avoid exposing it to extreme temperatures or rough handling. Also, always check the pictures before purchasing to make sure you're getting exactly what you expect.