Planet Xchange Knoxville is a thrift store that offers a wide selection of gently used clothing and accessories at affordable prices. Customers have had mixed experiences with the store's pricing, with some finding the prices to be cheaper than a normal store, while others feel they are still quite expensive for a thrift store. The store accepts trade-ins of good quality and fashionable items, allowing customers to exchange their clothing for store credit. The store is well-organized and maintained, and the staff is reported to be friendly and helpful. While some customers have had successful shopping experiences, finding great deals on brands like Ralph Lauren, Zara, and Madewell, others have been disappointed with the selection and feel the store is overpriced for a thrift store. Overall, Planet Xchange Knoxville seems to be a mixed bag, offering both positive and negative experiences for its customers.