"I am wondering... has anyone used lulu.com? If so, what do you think of it?"

I published my novel through Lulu.com and I was immensely satisfied with them. The forums and FAQs were helpful with any problems I had while putting the book together and their service is very prompt. When I published my novel, I ordered a proof and it was delivered within a week. I've heard bad things about POD products, that they look unprofessional and sloppy, but I didn't have that problem at all. My book looks very professional.

I purchased an ISBN for $100, but if I chose not to, I wouldn't have spent a dime and could have just as easily sold it through their website.