Basically, Xlibris cons you into believing that they can deliver a professional product, and will destroy your book with terrible editing and release it on the Market with numerous errors... Without regard to an author's future. They have been known to allegedly cheat authors out of royalties due.
If you have done business with this company be smart and cut your losses asap. Also, research the Internet and you will see a very interesting article written about Xlibris by Forbes Magazine. If you find yourself wronged do not sit back and take it. Stand up and join in the class action lawsuit and fight against them.