Smart Search & Filter

This is the best "Filter & Search app" ever!! So far we have used a lot of these kinds app in shopify app store. However, this app is the most powerful and has great functionality such as Personalization(Curation) Analytics and on so. (Also, the price is very reasonable comparing with other apps.)
Moreover, the CS is Fantastic and you don't need to worry about Theme integration if you are even a beginner shopify. Thanks Mezerion Team..