SlamminJimmy96

If you want to make sure that your system is distortion free, it'll be useful for that, plus, you can charge people like $20 to do their systems too on the side too.

the piece of mind and satisfaction knowing that your amp gains are properly set are worth way more than the price. especially if you're running high-powered amps.

If you are running anything that you would be really pissed it broke because it was expensive - get it