Reviewers see Ahrefs as a strong, reliable SEO tool, especially for backlink analysis, competitor research, and features like Site Explorer and Keywords Explorer. Many say its data is deep, fast, and useful for shaping content strategy, tracking rankings, and spotting technical issues. The main complaint is cost: users repeatedly call it expensive for freelancers, small teams, and agencies, with extra frustration around credit-based pricing that can feel opaque and restrictive. A smaller thread also notes a learning curve, weaker intuitiveness, and occasional instability.