Is ahrefs worth it?

It depends on what you’re looking for. Ahrefs is a great tool for link building, backlink auditing, rank tracking, and competitor research. But it lacks in web indexing so while the backlinks they find might be good to build links with, they won’t help you create content or understand your competitors like SEMrush would.
Ahrefs solves a specific problem - finding accurate data that can be used for your next link-building campaign. And it does this well! A lot of copywriters out there use Ahrefs to get high-quality backlinks and make their jobs easier when it comes to creating content that ranks higher.