Customers highly praise the product for its comfort, noting it adds extra cushion and makes rugs feel more luxurious. The thickness is also frequently mentioned positively, with reviewers describing it as substantial and providing a nice spring. The quality is consistently rated as excellent, with many stating it transforms inexpensive rugs into high-end ones. Functionality is a key highlight, as the product effectively prevents rugs from slipping and is easy to position. Customers also find the product to be a great value, with several mentioning it is reasonably priced and a worthwhile purchase.