Yes, we've had success with topical clusters across several client websites. One recent example is a finance client, where we reorganized the content into clear topic clusters around core financial services and connected them with supporting articles through strategic internal linking. Alongside quality backlinks, we saw steady improvements in keyword rankings and organic visibility over the following months.
In our experience, you can usually start to notice movement within 6–12 weeks, while more competitive niches often take 3–6 months to show significant gains.
The biggest mistake is expecting topical clusters alone to do all the work - they're most effective when combined with solid on-page SEO, internal linking, and authority backlinks that reinforce the entire content cluster.