To use PowerChord, you can start by exploring the many presets to get a feel for the sounds it can make. If you want to be more creative, use the groove sequencer to build your own unique groove sequences. You can also manually play different types of strokes for more control. When using the 55 guitar models, experiment with the filters, FX, and synthesizer features to sculpt your ideal sound. As for maintenance, make sure your system meets the plugin's requirements and keep it updated. There's no complex cleaning or upkeep, but just ensure your software environment is stable. Remember, this plugin is meant to enhance your music - making, so have fun and let your creativity flow!