Calibre is a champion of ebook management functionalities, but I have never been satisfied with its experience, nor its developer. It was never designed to be a

Calibre is a champion of ebook management functionalities, but I have never been satisfied with its experience, nor its developer. It was never designed to be a hosted library accessible over the web, and it's a very poor experience in my opinion. If there was a solid competitor that was more open, more modern, and designed with the hosted library solution in mind, I would no doubt start using it.