Boy did I need this plugin! I was always over-driving my audio without noticing. The LEDs help me keep my mic audio at a good level at all times, even when I'm using the S-Meter needle to measure power! Just keep one or two green LEDs lit and you know that you have a good audio level. If you start to see yellow or red, back off the mic!

I have a youtube video on how to benefit from this plugin at: http://youtube.com/blahblahblah