Since I added it, I've become spoiled. Can't imagine doing a show without it now. I often work alone and use a hard wire microphone. I was guessing my volume based on how it sounded to my ear in an empty venue. I've done that for years and am pretty good at it, but there were times it was far from perfect. Now I can set music levels and check the house sound from the front. When music levels are right, I then add voice so it fits nicely over the music in the moniter. It gives me the correct mix for out front. Should have added one a long time ago!

And again, it was a simple thing we learned at VentHaven which has really helped me improve this area of my act.