This auditor grades your PPC ad group performance to help spot budget waste. It's built for analyzing metrics like click-through rates, conversion rates, and cost per acquisition across your ad groups, giving you letter grades and specific feedback on what's underperforming. You'd reach for this when you're managing Google Ads or similar campaigns and need a systematic way to identify which ad groups are burning money without results. The grading system gives you a quick snapshot of where to focus your optimization efforts rather than manually comparing metrics across dozens of ad groups. Useful for anyone running regular PPC audits or managing multiple campaigns.