Boost AI Search & Filter , 1,844 reviews

This is the best product filter app out there! I have tried others, but they weren't as good as this one. It provides the ability to have many filters in a category (unlike others that create collections associated to tags -which means you can only have one filter per category-), and it does it by changing the url (which is nice when sending links or bookmarking pages), instead of doing some Javascript trickery. I had a hard time setting it up, but the support team was quick to respond and did it for me. The internal menu however is clear and easy to understand. I highly recommend it!
Thank you for a quality app!

The app itself is great and will allow displaying very effective filters. However, I'm not writing this review to talk about the app features which are visible in the description but to talk about the customer support.
I cannot recommend these guys enough. They have developed a custom solution for my store which has helped a great deal, their responses are quick and professional and they are always willing to help. If you have any doubts about paying for this app, I can tell you, just the support itself makes it worth investing. Thanks a lot, Tony.

Amazing App! Amazing Support! The app did everything I needed it to and the support gave it that extra "BOOST" to make it extra special for us! I can't compliment their app and support team enough, they truly wnet above and beyond. Speed, quality, attention to detail, that's how I would best describe their support. THANKS SO MUCH!