Calibre can convert mobi files to pdf, and ebook viewer can also print mobi files into pdf, if with some pdf print driver installed.
All the two methods only yield very bad-looking pdf files

(forgive me I hadn't yet fully master the pdf conversion options). I know there exists very rich information in mobi files and that information must be able to help in producing good looking pdf files.
So here comes my question: is there a descent predefined set of options for pdf conversion in Calibre or some 1-click (maybe several, but not that many as in Calibre) tools to create good looking pdf files that resemble the page effects of a real book?