It's great for things like blog posts, but not so great for technical documentation. Tables are the key. Also if it had DocuWiki/MediaWiki import tools and PDF/ePub export for print and screen reading it would have been perfect. Markdown doesn't cut it if you have tables, the DocuWiki format seems to be better suited for that but also a lot more annoying for source editing regular stuff and a nuisance for non technical people. We have online docs on DocuWiki. At least we have the option to use Pandoc to convert to printable formats. The thing is that our whole instance looks like a 00s web 1.0 website and it's not searchable. I'm always annoyed when looking for something on it. Your BookStack web app is miles ahead in this regard. I love the chapter collapses.