Power Tools Suite

If you have many collections and different types of products as my curated store does you need a better filtering system than Shopify offers, for a better and easier customer experience.
Power Tools is a good system that adds sidebar menus to stores. It's worth paying for extra support to get the app to do what it needs to as it is quite complicated. The App Devs are patient and work with you to get to the point of publishing. I don't yet know if it will boost sales in my store but of course I am hoping so.