The Magento 2 Layered Navigation Extension allows customers to filter products based on various attributes such as price, colour, size, and brand. It provides a user-friendly interface that enhances the shopping experience by making it easier for customers to find exactly what they are looking for. With this extension, customers can quickly narrow down their search results and save time by eliminating products that do not meet their criteria. Additionally, it helps increase conversion rates by presenting relevant products to potential buyers. It ultimately improves the overall shopping experience for customers.