I've been using SearchIQ for about six months and it remains one of the better AppSumo purchases I've made.
I originally bought it because site search data is one of the clearest signals of visitor intent. I wanted to know what people were searching for, which searches produced no results, and what content visitors were struggling to find. While some of this can be implemented in Google Analytics, it typically requires custom setup and ongoing maintenance.
SearchIQ makes that much easier. Installation is straightforward, the search experience is noticeably better than default WordPress search, and the analytics surface exactly the signals I was looking for.
The biggest benefit for me has been understanding what visitors are actually looking for in their own words. That kind of insight helps identify content gaps and opportunities that would otherwise be easy to miss.
The analytics do have real limitations though. They need longer data retention, better historical reporting, and internal traffic filtering. I flagged the last one to the team six months ago and it has not been implemented yet, which also raises questions about the pace of active development.
Strong value at $39 lifetime. The search experience is already excellent. The analytics just need to catch up. I cover all of this in more detail, including a full feature comparison and six months of hands-on findings, in my complete review at https://marketingwithdave.com/searchiq-review/