Using this Grass Valley T2 Express Digital Disk Recorder is easy. First, connect it to a power source with the provided correct power supply. Then, you can start recording your desired content. When using it, make sure the power supply is stable to avoid any interruptions. As for maintenance, keep it in a dry and clean place. If you find any problems, check the power supply connection first. It's also a good idea to regularly clean the exterior of the recorder to keep it in good condition.