The release of Calibre 8.0 has been received positively by users who appreciate its functionality without the clutter of modern application designs. Notably, it features improved Kobo support for managing KEPUB file formats, which enhances usability for those who use Kobo devices. Users praise Calibre for its speed, reliability, and the responsiveness of its developer, Kovid Goyal. The frequent updates and lack of intrusive monetization make it a favorite for managing large digital libraries. Some users discuss the convenience of using Calibre with Docker for backend processing, and others express the need for better e-book reading solutions on iOS. Yet, challenges remain, such as file association issues in Windows and debates over the best software for reading versus organizing ebooks. Overall, Calibre continues to stand out in a market moving towards subscription-based applications.