Here is all features list available on this item.
Filter By Attributes
There is included an input field for default attribute color and size, you can also add input fields for custom attributes via action hooks
Add Input Field via Action Hook
You can add custom input field or custom HTML via action hook on filter form and add query argument to shop query.
Remove Existing Input Fields
You can remove any the existing input field via action hook.
Display via Widgets
You can display shop filter anywhere via widgets on the sidebar or footer.
Display via Shortcodes
You can also display shop filter via shortcodes anywhere on sidebar or theme files.
Filter on-sale product
There is option for filter on-sale product.
Vis shop filter you can filter product in stock or out of stock.
Filter by SKU
Filter product via SKU also available on shop filter.
Filter by Keywords
The most wanted feature is visitor will be searching by keyword to find your product, there is keyword field available in shop filter.
Filter by Product Categories
You can also filter the product by categories.
Filter by Product Tags
Filter product by tags also available, comma separated value for multiple tag is also available.
Filter by Price Range
You can also filter product by a certain price range.
Filter by order & order by
You can also filter product order by ascending or descending. there is also different order by parameter like price, date, ratings, title, menu order, popularity, title
Here is some highlighted feature that make the plugin unique..