The PDF generation is poor. When including a simple code block in a wiki page and you generate the pdf, then the code is rendered on 30% of the page width and after each line, an extra blank line is inserted. A compact 10 line code block is thus rendered in the pdf as a 2 page document and cannot be used in a production environment !
Other styles are also rendered very poor. Look at the indent 2 level, line spacing in general and rendering of images. An image is rendered at 180%, where we should just expect to reduce the size so that an average screendump fits on the page.
It cannot be a huge effort to enhance the pdf rendering and this should increase the use of the product. We are now forced to use MS Word documents again if we want a correct PDF that we can mail to our customers....