I printed 4 compilation volumes through Lulu. There are some issues and stumbling blocks, but overall I was and still am pleased with the quality of the books and the pricing isn't bad - especially if you use one of the (many) coupons they are constantly advertising. Currently they have a 15% off Print Books coupon using code
LULU15 which is good until Oct 2. They had a 25% coupon a week ago and free shipping coupon at the beginning of Sep. So I suggest you sign up to their mailing list and wait for a good coupon (lately, the 25% has been about the best they've offered.
We've had several
discussion threads on Lulu. In one of them I discovered that more recently Lulu has an issue with some GURPS books and was
able to suggest a way to fix it.