Your readers make up their minds before chapter one ends. They notice whether the cover page feels deliberate, whether the chapters are easy to read, and whether signing in feels trustworthy.
A polished experience means the library card, the title page, and the reading view all feel like one release. Saved progress and bookmarks then show your readers you respect their time, and a Companion Guide can add more to the books that suit one.
That's why ContentFactory treats your portal as part of publishing quality, not an afterthought once the manuscript is done.