It works wonderfully, even better in some aspects than what you would expect.
The Search feature is 10/10.
It was the only one in its territory from the research we did that allowed us to have 100% the setup we wanted. Support is fantastic, thanks a lot Nancy!

We've tried several apps with the group filter and search capability and Ultimate Product and Filter + Search was by far the best. I found that none of these apps are a one click integration from the start, but the customization is very doable - especially when any questions/issues I had were responded to or fixed with 1-2 days. The customer service is outstanding. Other important factors for us besides the obvious functionalities were 1) impact to site speed/performance and 2) ability to maintain all the same functionalities within the theme options on the pages that the filters appeared (not the case with some apps) The app has passed both tests so far, overall we are very happy with it.

Great and quick support in the installation process. The app looks really great on the shop. It fits very well into our design and has good options for filtering and selecting. Looking forward to working with it

great app! i'm really impressed with the level of functionality, ability to customize, and (most importantly) the awesome customer service!

Buenas, mi página binexpres.com tiene problemas con su aplicación, la página de colección se queda en blanco y es la segunda vez que esto ocurre por favor pues estoy intentando con otra app y me dicen que es vuestra app. gracias .. lleva desde hace 8 horas en blanco mi web obtiene un trafico diario elevado y me puede estar causando perdida de clientes gracias ..

Beatifull app with a lot of widgets. Quite easy. Very customizable. Assistance wonderful! In two minuts, they solved my problem.

Most fantastic app. Here are the three great things it did to my site: 1. my filters are incredibly convenient now, very easy to customize and navigate. 2. the search engine improved a lot. My store is in Russian, and still search engine has no difficulties indexing and recognizing search requests, making suggestions and finding stuff in tags, product descriptions and collections. It is day and night compared to the basic shopify search engine. 3. merchandising rules: I am now able to push out of stock products to the end of the lists, which is very helpful.
I had some troubles integrating the app to the theme because I screwed some of the settings, and the team was very helpful and quick to react. They studied my code, with all those cyrillic symbols and came back with a solution. Thank you!

After experimenting with other apps, we found this to be the best option for setting up customized filters in each collection. The best thing about this app was that it provided better support for variants than other apps.

When we later discovered that it interfered with a couple of other apps, we wrote to the support team and they promptly and properly fixed the issue. That convinced us that we have made the right choice.

I have tried a lot of options after using Ultimate Product Filter, and I am sure to tell you that is if not the best, one of the best options that you can find on Shopify apps. The support works very fast to help to fix problems that eventually you can get with the filter and some paid layouts. Thanks for everything Nancy!

Great app, also products load fast. i used different apps but all deleted because products failed to load. also good customer support, helped me out quick with good responses wich actually worked.