We really appreciate the AI- and data-driven approach of Constructor. The system is pretty easy to use both for technical and non-technical people, integrates nicely with our IT landscape and helped us to significantly improve our search performance. It quickly became essential for our customer experience and there is an ever growing list of continuous optimizations for the upcoming months. It is great fun to plan, see and measure the impact of Constructor initiatives. On top of that, their customer support is top notch and it really feels like a strategic partnership where both parties benefit from each other. We really look forward for the next steps. Review collected by and hosted on G2.com.

The explainability of the search results is working pretty well already, but can be improved even more in the future, e.g. by showcasing the underyling rules causing certain boosts. Furthermore, being able to run more fine-granular A/B tests on search query level would be awesome. Review collected by and hosted on G2.com.

I appreciate having a great sparring partner, Niklas Broeker, who helps us out and is always available for questions and suggestions. I like the feel and look of the Constructor page itself, and it really helps that we have documentation and actual people we can talk to, which is the most important point for us. I don't remember what's it called, but Constructor offers more than just software; there's also the 'knowledge' and help behind it, which so far has been the best value for our team. Also, the initial setup was easier than I thought, easy enough. Review collected by and hosted on G2.com.

I do think that though I love the feel and look of Constructor's page, it could be more intuitive. I feel from an intuitivity standpoint, it's hard to navigate the tool. Also, there is much documentation, nevertheless not really 'on point,' you really have to dig sometimes. Sure, for example when we click on an item; I want to be able to instantly check why this item is ranked this way and why. I get that as a software service you cannot be 100% transparent about your algorithms, though sometimes it's hard to understand certain aspects, like which boost rule pushes this item up to 5%, etc. Review collected by and hosted on G2.com.

There may be a few opportunities for further refinement. In some cases, the algorithm appears to take a bit longer to adapt, which can temporarily affect the relevance or completeness of the results. There also seems to be room for improvement in how transliteration between English and Greek is handled. Additionally, it would be greatly appreciated if rule changes could be applied instantly, as immediate visibility of updates would be very helpful from a usability perspective. Review collected by and hosted on G2.com.

In some cases, the algorithm might take a bit longer to adapt, which can temporarily affect the relevance or completeness of the results. Additionally, it would be greatly appreciated if rule changes could be applied instantly. Review collected by and hosted on G2.com.

We like how Constructor's search provides better contextual matching to user queries and offers improved ranking of products. We appreciate the advanced machine-learning click-stream analysis, which allows us to optimize the entire site in near real-time. The fact that our A/B tests show Constructor's choices outperform business rule overrides gives us confidence in the system. We also find the simplified interface and the overall machine control approach with click-stream and personalized ranking to be a big improvement over our previous solution. Review collected by and hosted on G2.com.

Our fast-track implementation did not allow us to utilize the full features of the app, such as fine-tuning facet controls through the dashboard or leveraging features like their collections. Initially, the product recommendations were very poor and this did require more business rules to get it working as we wished. There are several A/B features we wish added, such as sessions, revenue, and orders and the ability to break A/B metrics down by device. Review collected by and hosted on G2.com.

The biggest win for us has been the commercial impact, especially through Recommendations - the revenue lift has been outstanding. We’ve also seen strong results through independent A/B testing, including improvements from recommendation engines and geo-localised ranking, and we’ve almost eliminated zero search results, which has clearly improved the customer experience.

Just as importantly, Constructor feels like a genuine partnership rather than a vendor relationship. The team is highly responsive and easy to work with, always available on Slack, and quick to pull in the right people when needed . That combination of measurable performance impact and a strong working relationship has made a real difference for us. Review collected by and hosted on G2.com.

Constructor is premium-priced, and while the ROI is clear from our results, the cost means we still have to regularly re-justify it internally

Early in the implementation, Constructor could have had a better understanding of what makes our business unique so they could give us better advice from the outset. That said, we did ultimately get the help we needed, and the team has been highly responsive throughout.

One area that could be improved is visibility into catalogue updates. It’s not always easy to see when and how products have changed, which makes it harder to validate our integration. Review collected by and hosted on G2.com.

I really like Constructor's straightforward tech integrations and good documentation, which made it easy to implement the service into our ecommerce. It seems like a really performant machine, helping us get more relevant search results and better performance for driving conversions. The good admin tools for sales boost products and provide insights into how eCommerce is behaving. The initial setup was really easy, thanks to the help from the Constructor team and the tech side. Review collected by and hosted on G2.com.

I haven't really found anything bad yet. We do need to learn more about the personalization capabilities, and we have some questions about how the generative AI assistant will work. Review collected by and hosted on G2.com.

I find the UI of Constructor easy to use. I really like the motivated team that always accompanies and supports us. The product ranking is better than before and has measurably increased the RPV in the browse area. Additionally, I appreciate that with Constructor, A/B testing for business teams and testing of ranking strategies is now possible. The basis for personalization is now available, and the area for analysis offers good insights into performance. The decision for Constructor instead of Algolia was made due to the lower price and more flexible contract terms with similarly good quality. I would wholeheartedly recommend Constructor. Review collected by and hosted on G2.com.

The integration was challenging and took longer than expected. The UI for the AB testing could include more KPIs and metrics. Review collected by and hosted on G2.com.

The personalisation and AI user-centric features we have access to help boost our business strategies, and enhance our user-experince with a search engine designed never to return a no result! Review collected by and hosted on G2.com.

Although rare, product changes sometimes don't sync to the end user as quickly as we'd like, and my team has to manually force-push the changes to Constructor. Review collected by and hosted on G2.com.

Constructor has been a strong partner for us—reliable platform capabilities, flexible relevance/ranking levers, and a cadence that supports rapid experimentation and continuous optimization. Their team is responsive and pragmatic, and they engage like an extension of our org when troubleshooting, interpreting results, or planning next iterations. Review collected by and hosted on G2.com.

Constructor's enablement program, needs to go deeper on the organizational transition—specifically by fully understanding the legacy context operations teams have been working in (tools, workflows, decision rights, and success metrics) and then explicitly mapping that into new ways of working on Constructor. Without that deeper discovery and role-by-role transition plan, ops teams can be left translating concepts and rebuilding processes on the fly, which creates friction and slows time-to-value. Review collected by and hosted on G2.com.

C.io offers an extensive tool box to optimize search in our frontends. The User interface enables the creation of individual search rules, scenarios and optimizations.

Their customer success team is very engaged to create value with us in close collaboration. Review collected by and hosted on G2.com.

The basic algorithm ist powerful, but needs to be guided well towards the individual customer targets.

Although growing rapdily, the analytics part has further space for growth in order to serve our specific cases. Review collected by and hosted on G2.com.