Using this Fender Acoustic SFX Guitar Amplifier is a breeze. First, make sure it's plugged into a 230V UK power source. Then, connect your guitar to the input. Adjust the volume, tone, and other settings according to your preference. When you're done, unplug it from the power source. As for maintenance, keep it in a dry place and avoid exposing it to extreme temperatures. Use the provided cover to protect it from dust and scratches. If you notice any issues, don't try to fix it yourself; instead, contact the manufacturer's customer service.