Has anyone ever had experience working with a book-writing service?

Nowadays, the majority of companies and organizations use book-writing services to help them create material for a range of goals, including marketing, branding, and education. because they have professionals that can write in a range of styles depending on the situation. A company could wish to publish a book from professional book writers, for instance, to advertise its products or services, whereas a nonprofit organization would want to do so to raise awareness of a certain issue. Would you agree with it?