I remember there being a few threads floating around asking about printing books. A few weeks ago I went through the process of getting my book printed (a personal copy for myself), and I did it all through Lulu.
They made it very easy. They have templates to use for formatting, so I did all of my formatting myself as well as cover design / wrap, which also had a customized template to make sure it’d fit my book.
Overall, I am extremely pleased with the quality! I chose a perfect bound, white standard paper, at 5.5 x 8.5 size, glossy cover.
I can’t speak on publishing through them, since I haven’t, but I am happy with the printed copy! It feels so great to hold my own words in my hands!