Roast SEOSage before launch day: what SEO check do you wish your tool did better?

SEOSage goes live on Product Hunt on 8 October. It's a desktop SEO crawler with no page limits (yes, even page 501). Before everyone shows up: which SEO check does your current tool charge extra for, or just does badly? I read every answer. Free 14-day trial at seosage.co, and the code LAUNCH30 gives 30% off at checkout.