Customers report that this product significantly enhances comfort, making mattresses feel softer and more cozy. Many find it to be a good value, especially as an alternative to purchasing a new mattress. The quality is generally praised, with the product not packing down easily. While some reviewers noted a lack of initial smell, others experienced a chemical odor that took several days to dissipate. There are also mixed opinions regarding the product's softness, with some finding it too firm for their needs.