When is a good time to seek an online book writing company?

Time can be a great hurdle if one wants to write a book as a hobby. Even if we are good at writing, life is so busy that it becomes nearly impossible to take time out for it. Thanks to the internet, we can now take the services of an online book writing company. It seems best to let professionals write when we can’t take out time. But, with professional help just a few clicks away, can these companies actually meet the deadline we give them?