In modern times, Lulu is right up there alongside Amazon in terms of creating a high quality product. The book you get from Lulu will be comparable to a book you get from any standard publisher. Their support team is fairly prompt, too. If you've got an issue with how something is loading, they'll lend a hand.
Note that they will NOT do free editing or graphic design for you. That's not their job. If you need an editor for your book, you need to hire an editor. If you want someone to design a cover for you, go to Fiverr.com or Freelancer or another site and hire a cover designer. But in terms of technical issues with their system, Lulu will help you solve any problems you might be having.
The main thing when making the PDFs for Lulu is to embed all fonts. Lulu can't guess at what fonts you're using or what they look like. Your creation software should provide the option to embed all fonts so that the font descriptions are part of your document. That way the Lulu system knows exactly how to draw every page for you.
Publishing On Demand Step By Step - Lulu
Lulu Self Publishing - Setting Up the Book
Formatting your Book for Self Publishing
Creating a Lulu Covers
Setting the Lulu Description
Setting the Lulu Preview
Promoting your Lulu Book
Problems and Issues with Lulu
Ebooks on Lulu
Lulu Self Publishing Main Page
Lisa Shea Free Ebooks
Lisa Shea Full Library of Published Books
Getting Your Book Published
Writing Tips and Online Books
Lisa Shea Medieval Romance Novels
Online Literary Magazines
Lisa Shea's Homepage